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Finding the Fourth Proportional to 488,660.88, 729,649.23 and 437,731.32

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Solution

The fourth proportional to 488,660.88, 729,649.23 and 437,731.32 is: 653,603.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,660.88 : 729,649.23 = 437,731.32 : x
  2. Step 2: Convert to fraction form
    488,660.88/729,649.23 = 437,731.32/x
  3. Step 3: Cross multiply
    488,660.88x = 729,649.23 × 437,731.32
  4. Step 4: Simplify right side
    488,660.88x = 319,390,320,584.88
  5. Step 5: Solve for x
    x = 319,390,320,584.88/488,660.88
  6. Step 6: Final answer
    x = 653,603.21

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.