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Finding the Fourth Proportional to 437,771.71, 654,656.46 and 318,230.29

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Solution

The fourth proportional to 437,771.71, 654,656.46 and 318,230.29 is: 475,890.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    437,771.71 : 654,656.46 = 318,230.29 : x
  2. Step 2: Convert to fraction form
    437,771.71/654,656.46 = 318,230.29/x
  3. Step 3: Cross multiply
    437,771.71x = 654,656.46 × 318,230.29
  4. Step 4: Simplify right side
    437,771.71x = 208,331,515,116.17
  5. Step 5: Solve for x
    x = 208,331,515,116.17/437,771.71
  6. Step 6: Final answer
    x = 475,890.77

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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.