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Finding the Fourth Proportional to 635,279.85, 876,686.76 and 344,891.20

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Solution

The fourth proportional to 635,279.85, 876,686.76 and 344,891.20 is: 475,950.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,279.85 : 876,686.76 = 344,891.20 : x
  2. Step 2: Convert to fraction form
    635,279.85/876,686.76 = 344,891.20/x
  3. Step 3: Cross multiply
    635,279.85x = 876,686.76 × 344,891.20
  4. Step 4: Simplify right side
    635,279.85x = 302,361,548,680.51
  5. Step 5: Solve for x
    x = 302,361,548,680.51/635,279.85
  6. Step 6: Final answer
    x = 475,950.16

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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.