Home / 755,309.86-1,042,351.08-411,168.70

Finding the Fourth Proportional to 755,309.86, 1,042,351.08 and 411,168.70

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Solution

The fourth proportional to 755,309.86, 1,042,351.08 and 411,168.70 is: 567,425.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    755,309.86 : 1,042,351.08 = 411,168.70 : x
  2. Step 2: Convert to fraction form
    755,309.86/1,042,351.08 = 411,168.70/x
  3. Step 3: Cross multiply
    755,309.86x = 1,042,351.08 × 411,168.70
  4. Step 4: Simplify right side
    755,309.86x = 428,582,138,507.20
  5. Step 5: Solve for x
    x = 428,582,138,507.20/755,309.86
  6. Step 6: Final answer
    x = 567,425.58

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.