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Finding the Fourth Proportional to 488,228.72, 732,076.11 and 387,672.71

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Solution

The fourth proportional to 488,228.72, 732,076.11 and 387,672.71 is: 581,297.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,228.72 : 732,076.11 = 387,672.71 : x
  2. Step 2: Convert to fraction form
    488,228.72/732,076.11 = 387,672.71/x
  3. Step 3: Cross multiply
    488,228.72x = 732,076.11 × 387,672.71
  4. Step 4: Simplify right side
    488,228.72x = 283,805,927,659.77
  5. Step 5: Solve for x
    x = 283,805,927,659.77/488,228.72
  6. Step 6: Final answer
    x = 581,297.08

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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.