Home / 635,387.37-876,849.89-345,011.28

Finding the Fourth Proportional to 635,387.37, 876,849.89 and 345,011.28

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Solution

The fourth proportional to 635,387.37, 876,849.89 and 345,011.28 is: 476,123.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    635,387.37 : 876,849.89 = 345,011.28 : x
  2. Step 2: Convert to fraction form
    635,387.37/876,849.89 = 345,011.28/x
  3. Step 3: Cross multiply
    635,387.37x = 876,849.89 × 345,011.28
  4. Step 4: Simplify right side
    635,387.37x = 302,523,101,191.70
  5. Step 5: Solve for x
    x = 302,523,101,191.70/635,387.37
  6. Step 6: Final answer
    x = 476,123.88

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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.