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Finding the Fourth Proportional to 438,605.92, 658,171.29 and 402,914.08

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Solution

The fourth proportional to 438,605.92, 658,171.29 and 402,914.08 is: 604,612.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,605.92 : 658,171.29 = 402,914.08 : x
  2. Step 2: Convert to fraction form
    438,605.92/658,171.29 = 402,914.08/x
  3. Step 3: Cross multiply
    438,605.92x = 658,171.29 × 402,914.08
  4. Step 4: Simplify right side
    438,605.92x = 265,186,479,792.76
  5. Step 5: Solve for x
    x = 265,186,479,792.76/438,605.92
  6. Step 6: Final answer
    x = 604,612.18

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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.