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Finding the Fourth Proportional to 663,474.48, 994,622.16 and 258,572.88

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Solution

The fourth proportional to 663,474.48, 994,622.16 and 258,572.88 is: 387,629.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    663,474.48 : 994,622.16 = 258,572.88 : x
  2. Step 2: Convert to fraction form
    663,474.48/994,622.16 = 258,572.88/x
  3. Step 3: Cross multiply
    663,474.48x = 994,622.16 × 258,572.88
  4. Step 4: Simplify right side
    663,474.48x = 257,182,316,423.02
  5. Step 5: Solve for x
    x = 257,182,316,423.02/663,474.48
  6. Step 6: Final answer
    x = 387,629.55

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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.