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Finding the Fourth Proportional to 486,347.89, 728,543.75 and 242,453.04

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Solution

The fourth proportional to 486,347.89, 728,543.75 and 242,453.04 is: 363,191.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    486,347.89 : 728,543.75 = 242,453.04 : x
  2. Step 2: Convert to fraction form
    486,347.89/728,543.75 = 242,453.04/x
  3. Step 3: Cross multiply
    486,347.89x = 728,543.75 × 242,453.04
  4. Step 4: Simplify right side
    486,347.89x = 176,637,643,317.78
  5. Step 5: Solve for x
    x = 176,637,643,317.78/486,347.89
  6. Step 6: Final answer
    x = 363,191.96

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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.