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Finding the Fourth Proportional to 461,897.28, 637,241.28 and 280,544.64

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Solution

The fourth proportional to 461,897.28, 637,241.28 and 280,544.64 is: 387,044.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    461,897.28 : 637,241.28 = 280,544.64 : x
  2. Step 2: Convert to fraction form
    461,897.28/637,241.28 = 280,544.64/x
  3. Step 3: Cross multiply
    461,897.28x = 637,241.28 × 280,544.64
  4. Step 4: Simplify right side
    461,897.28x = 178,774,625,490.74
  5. Step 5: Solve for x
    x = 178,774,625,490.74/461,897.28
  6. Step 6: Final answer
    x = 387,044.12

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1.5x scale

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.