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Finding the Fourth Proportional to 508,885.12, 766,627.88 and 484,128.64

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Solution

The fourth proportional to 508,885.12, 766,627.88 and 484,128.64 is: 729,332.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    508,885.12 : 766,627.88 = 484,128.64 : x
  2. Step 2: Convert to fraction form
    508,885.12/766,627.88 = 484,128.64/x
  3. Step 3: Cross multiply
    508,885.12x = 766,627.88 × 484,128.64
  4. Step 4: Simplify right side
    508,885.12x = 371,146,512,930.48
  5. Step 5: Solve for x
    x = 371,146,512,930.48/508,885.12
  6. Step 6: Final answer
    x = 729,332.61

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.