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Finding the Fourth Proportional to 521,204.76, 719,138.52 and 317,253.24

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Solution

The fourth proportional to 521,204.76, 719,138.52 and 317,253.24 is: 437,733.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,204.76 : 719,138.52 = 317,253.24 : x
  2. Step 2: Convert to fraction form
    521,204.76/719,138.52 = 317,253.24/x
  3. Step 3: Cross multiply
    521,204.76x = 719,138.52 × 317,253.24
  4. Step 4: Simplify right side
    521,204.76x = 228,149,025,478.81
  5. Step 5: Solve for x
    x = 228,149,025,478.81/521,204.76
  6. Step 6: Final answer
    x = 437,733.96

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Double scale
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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.