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Finding the Fourth Proportional to 578,180.15, 866,771.52 and 278,248.13

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Solution

The fourth proportional to 578,180.15, 866,771.52 and 278,248.13 is: 417,132.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,180.15 : 866,771.52 = 278,248.13 : x
  2. Step 2: Convert to fraction form
    578,180.15/866,771.52 = 278,248.13/x
  3. Step 3: Cross multiply
    578,180.15x = 866,771.52 × 278,248.13
  4. Step 4: Simplify right side
    578,180.15x = 241,177,554,577.26
  5. Step 5: Solve for x
    x = 241,177,554,577.26/578,180.15
  6. Step 6: Final answer
    x = 417,132.19

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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.