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Finding the Fourth Proportional to 389,750.04, 584,641.50 and 123,504.66

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Solution

The fourth proportional to 389,750.04, 584,641.50 and 123,504.66 is: 185,262.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,750.04 : 584,641.50 = 123,504.66 : x
  2. Step 2: Convert to fraction form
    389,750.04/584,641.50 = 123,504.66/x
  3. Step 3: Cross multiply
    389,750.04x = 584,641.50 × 123,504.66
  4. Step 4: Simplify right side
    389,750.04x = 72,205,949,679.39
  5. Step 5: Solve for x
    x = 72,205,949,679.39/389,750.04
  6. Step 6: Final answer
    x = 185,262.20

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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.