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Finding the Fourth Proportional to 521,452.92, 719,501.03 and 317,367.15

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Solution

The fourth proportional to 521,452.92, 719,501.03 and 317,367.15 is: 437,903.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,452.92 : 719,501.03 = 317,367.15 : x
  2. Step 2: Convert to fraction form
    521,452.92/719,501.03 = 317,367.15/x
  3. Step 3: Cross multiply
    521,452.92x = 719,501.03 × 317,367.15
  4. Step 4: Simplify right side
    521,452.92x = 228,345,988,218.33
  5. Step 5: Solve for x
    x = 228,345,988,218.33/521,452.92
  6. Step 6: Final answer
    x = 437,903.36

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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.