Home / 908,312.48-1,253,569.74-500,456.15

Finding the Fourth Proportional to 908,312.48, 1,253,569.74 and 500,456.15

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Solution

The fourth proportional to 908,312.48, 1,253,569.74 and 500,456.15 is: 690,683.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    908,312.48 : 1,253,569.74 = 500,456.15 : x
  2. Step 2: Convert to fraction form
    908,312.48/1,253,569.74 = 500,456.15/x
  3. Step 3: Cross multiply
    908,312.48x = 1,253,569.74 × 500,456.15
  4. Step 4: Simplify right side
    908,312.48x = 627,356,685,836.90
  5. Step 5: Solve for x
    x = 627,356,685,836.90/908,312.48
  6. Step 6: Final answer
    x = 690,683.77

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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 (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.