Home / 917,053.22-1,375,853.20-437,640.96

Finding the Fourth Proportional to 917,053.22, 1,375,853.20 and 437,640.96

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Solution

The fourth proportional to 917,053.22, 1,375,853.20 and 437,640.96 is: 656,591.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    917,053.22 : 1,375,853.20 = 437,640.96 : x
  2. Step 2: Convert to fraction form
    917,053.22/1,375,853.20 = 437,640.96/x
  3. Step 3: Cross multiply
    917,053.22x = 1,375,853.20 × 437,640.96
  4. Step 4: Simplify right side
    917,053.22x = 602,129,715,267.07
  5. Step 5: Solve for x
    x = 602,129,715,267.07/917,053.22
  6. Step 6: Final answer
    x = 656,591.90

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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.