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Finding the Fourth Proportional to 635,074.86, 876,373.38 and 344,679.84

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Solution

The fourth proportional to 635,074.86, 876,373.38 and 344,679.84 is: 475,641.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,074.86 : 876,373.38 = 344,679.84 : x
  2. Step 2: Convert to fraction form
    635,074.86/876,373.38 = 344,679.84/x
  3. Step 3: Cross multiply
    635,074.86x = 876,373.38 × 344,679.84
  4. Step 4: Simplify right side
    635,074.86x = 302,068,236,398.66
  5. Step 5: Solve for x
    x = 302,068,236,398.66/635,074.86
  6. Step 6: Final answer
    x = 475,641.94

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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.