Home / 1,330,692.10-1,996,038.15-489,069.70

Finding the Fourth Proportional to 1,330,692.10, 1,996,038.15 and 489,069.70

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Solution

The fourth proportional to 1,330,692.10, 1,996,038.15 and 489,069.70 is: 733,604.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,692.10 : 1,996,038.15 = 489,069.70 : x
  2. Step 2: Convert to fraction form
    1,330,692.10/1,996,038.15 = 489,069.70/x
  3. Step 3: Cross multiply
    1,330,692.10x = 1,996,038.15 × 489,069.70
  4. Step 4: Simplify right side
    1,330,692.10x = 976,201,779,209.06
  5. Step 5: Solve for x
    x = 976,201,779,209.06/1,330,692.10
  6. Step 6: Final answer
    x = 733,604.55

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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.