Home / 487,742.80-731,614.20-277,790.80

Finding the Fourth Proportional to 487,742.80, 731,614.20 and 277,790.80

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Solution

The fourth proportional to 487,742.80, 731,614.20 and 277,790.80 is: 416,686.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,742.80 : 731,614.20 = 277,790.80 : x
  2. Step 2: Convert to fraction form
    487,742.80/731,614.20 = 277,790.80/x
  3. Step 3: Cross multiply
    487,742.80x = 731,614.20 × 277,790.80
  4. Step 4: Simplify right side
    487,742.80x = 203,235,693,909.36
  5. Step 5: Solve for x
    x = 203,235,693,909.36/487,742.80
  6. Step 6: Final answer
    x = 416,686.20

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Similar ratio
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1.5x scale

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.