Home / 749,235.30-1,123,852.95-434,501.70

Finding the Fourth Proportional to 749,235.30, 1,123,852.95 and 434,501.70

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Solution

The fourth proportional to 749,235.30, 1,123,852.95 and 434,501.70 is: 651,752.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,235.30 : 1,123,852.95 = 434,501.70 : x
  2. Step 2: Convert to fraction form
    749,235.30/1,123,852.95 = 434,501.70/x
  3. Step 3: Cross multiply
    749,235.30x = 1,123,852.95 × 434,501.70
  4. Step 4: Simplify right side
    749,235.30x = 488,316,017,325.02
  5. Step 5: Solve for x
    x = 488,316,017,325.02/749,235.30
  6. Step 6: Final answer
    x = 651,752.55

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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.