Home / 431,280.12-647,047.00-127,682.00

Finding the Fourth Proportional to 431,280.12, 647,047.00 and 127,682.00

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Solution

The fourth proportional to 431,280.12, 647,047.00 and 127,682.00 is: 191,560.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,280.12 : 647,047.00 = 127,682.00 : x
  2. Step 2: Convert to fraction form
    431,280.12/647,047.00 = 127,682.00/x
  3. Step 3: Cross multiply
    431,280.12x = 647,047.00 × 127,682.00
  4. Step 4: Simplify right side
    431,280.12x = 82,616,252,046.32
  5. Step 5: Solve for x
    x = 82,616,252,046.32/431,280.12
  6. Step 6: Final answer
    x = 191,560.54

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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.