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Finding the Fourth Proportional to 674,252.88, 930,497.22 and 387,773.16

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Solution

The fourth proportional to 674,252.88, 930,497.22 and 387,773.16 is: 535,143.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,252.88 : 930,497.22 = 387,773.16 : x
  2. Step 2: Convert to fraction form
    674,252.88/930,497.22 = 387,773.16/x
  3. Step 3: Cross multiply
    674,252.88x = 930,497.22 × 387,773.16
  4. Step 4: Simplify right side
    674,252.88x = 360,821,847,370.62
  5. Step 5: Solve for x
    x = 360,821,847,370.62/674,252.88
  6. Step 6: Final answer
    x = 535,143.21

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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.