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Finding the Fourth Proportional to 495,425.50, 683,688.53 and 291,484.10

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Solution

The fourth proportional to 495,425.50, 683,688.53 and 291,484.10 is: 402,248.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    495,425.50 : 683,688.53 = 291,484.10 : x
  2. Step 2: Convert to fraction form
    495,425.50/683,688.53 = 291,484.10/x
  3. Step 3: Cross multiply
    495,425.50x = 683,688.53 × 291,484.10
  4. Step 4: Simplify right side
    495,425.50x = 199,284,338,285.31
  5. Step 5: Solve for x
    x = 199,284,338,285.31/495,425.50
  6. Step 6: Final answer
    x = 402,248.85

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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.