Home / 1,248,692.46-1,872,280.20-489,624.50

Finding the Fourth Proportional to 1,248,692.46, 1,872,280.20 and 489,624.50

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Solution

The fourth proportional to 1,248,692.46, 1,872,280.20 and 489,624.50 is: 734,139.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,248,692.46 : 1,872,280.20 = 489,624.50 : x
  2. Step 2: Convert to fraction form
    1,248,692.46/1,872,280.20 = 489,624.50/x
  3. Step 3: Cross multiply
    1,248,692.46x = 1,872,280.20 × 489,624.50
  4. Step 4: Simplify right side
    1,248,692.46x = 916,714,261,465.60
  5. Step 5: Solve for x
    x = 916,714,261,465.60/1,248,692.46
  6. Step 6: Final answer
    x = 734,139.34

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.