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Finding the Fourth Proportional to 606,385.80, 909,708.30 and 185,704.20

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Solution

The fourth proportional to 606,385.80, 909,708.30 and 185,704.20 is: 278,595.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,385.80 : 909,708.30 = 185,704.20 : x
  2. Step 2: Convert to fraction form
    606,385.80/909,708.30 = 185,704.20/x
  3. Step 3: Cross multiply
    606,385.80x = 909,708.30 × 185,704.20
  4. Step 4: Simplify right side
    606,385.80x = 168,936,652,084.86
  5. Step 5: Solve for x
    x = 168,936,652,084.86/606,385.80
  6. Step 6: Final answer
    x = 278,595.99

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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.