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Finding the Fourth Proportional to 578,188.04, 866,912.16 and 278,070.92

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Solution

The fourth proportional to 578,188.04, 866,912.16 and 278,070.92 is: 416,928.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,188.04 : 866,912.16 = 278,070.92 : x
  2. Step 2: Convert to fraction form
    578,188.04/866,912.16 = 278,070.92/x
  3. Step 3: Cross multiply
    578,188.04x = 866,912.16 × 278,070.92
  4. Step 4: Simplify right side
    578,188.04x = 241,063,061,890.39
  5. Step 5: Solve for x
    x = 241,063,061,890.39/578,188.04
  6. Step 6: Final answer
    x = 416,928.48

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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.