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Finding the Fourth Proportional to 521,468.46, 719,522.38 and 317,382.68

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Solution

The fourth proportional to 521,468.46, 719,522.38 and 317,382.68 is: 437,924.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,468.46 : 719,522.38 = 317,382.68 : x
  2. Step 2: Convert to fraction form
    521,468.46/719,522.38 = 317,382.68/x
  3. Step 3: Cross multiply
    521,468.46x = 719,522.38 × 317,382.68
  4. Step 4: Simplify right side
    521,468.46x = 228,363,941,284.38
  5. Step 5: Solve for x
    x = 228,363,941,284.38/521,468.46
  6. Step 6: Final answer
    x = 437,924.74

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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.