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Finding the Fourth Proportional to 608,339.68, 912,431.74 and 253,287.52

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Solution

The fourth proportional to 608,339.68, 912,431.74 and 253,287.52 is: 379,898.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,339.68 : 912,431.74 = 253,287.52 : x
  2. Step 2: Convert to fraction form
    608,339.68/912,431.74 = 253,287.52/x
  3. Step 3: Cross multiply
    608,339.68x = 912,431.74 × 253,287.52
  4. Step 4: Simplify right side
    608,339.68x = 231,107,572,593.89
  5. Step 5: Solve for x
    x = 231,107,572,593.89/608,339.68
  6. Step 6: Final answer
    x = 379,898.90

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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.