Home / 656,781.13-985,213.23-277,631.20

Finding the Fourth Proportional to 656,781.13, 985,213.23 and 277,631.20

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Solution

The fourth proportional to 656,781.13, 985,213.23 and 277,631.20 is: 416,464.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    656,781.13 : 985,213.23 = 277,631.20 : x
  2. Step 2: Convert to fraction form
    656,781.13/985,213.23 = 277,631.20/x
  3. Step 3: Cross multiply
    656,781.13x = 985,213.23 × 277,631.20
  4. Step 4: Simplify right side
    656,781.13x = 273,525,931,300.78
  5. Step 5: Solve for x
    x = 273,525,931,300.78/656,781.13
  6. Step 6: Final answer
    x = 416,464.36

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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.