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Finding the Fourth Proportional to 487,037.88, 730,381.66 and 284,703.12

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Solution

The fourth proportional to 487,037.88, 730,381.66 and 284,703.12 is: 426,952.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,037.88 : 730,381.66 = 284,703.12 : x
  2. Step 2: Convert to fraction form
    487,037.88/730,381.66 = 284,703.12/x
  3. Step 3: Cross multiply
    487,037.88x = 730,381.66 × 284,703.12
  4. Step 4: Simplify right side
    487,037.88x = 207,941,936,681.02
  5. Step 5: Solve for x
    x = 207,941,936,681.02/487,037.88
  6. Step 6: Final answer
    x = 426,952.29

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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.