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Finding the Fourth Proportional to 487,013.80, 730,782.30 and 237,695.80

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Solution

The fourth proportional to 487,013.80, 730,782.30 and 237,695.80 is: 356,671.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,013.80 : 730,782.30 = 237,695.80 : x
  2. Step 2: Convert to fraction form
    487,013.80/730,782.30 = 237,695.80/x
  3. Step 3: Cross multiply
    487,013.80x = 730,782.30 × 237,695.80
  4. Step 4: Simplify right side
    487,013.80x = 173,703,883,424.34
  5. Step 5: Solve for x
    x = 173,703,883,424.34/487,013.80
  6. Step 6: Final answer
    x = 356,671.38

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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.