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Finding the Fourth Proportional to 508,569.60, 762,854.40 and 134,630.40

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Solution

The fourth proportional to 508,569.60, 762,854.40 and 134,630.40 is: 201,945.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,569.60 : 762,854.40 = 134,630.40 : x
  2. Step 2: Convert to fraction form
    508,569.60/762,854.40 = 134,630.40/x
  3. Step 3: Cross multiply
    508,569.60x = 762,854.40 × 134,630.40
  4. Step 4: Simplify right side
    508,569.60x = 102,703,393,013.76
  5. Step 5: Solve for x
    x = 102,703,393,013.76/508,569.60
  6. Step 6: Final answer
    x = 201,945.60

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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.