Home / 667,437.40-1,001,444.10-387,194.20

Finding the Fourth Proportional to 667,437.40, 1,001,444.10 and 387,194.20

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Solution

The fourth proportional to 667,437.40, 1,001,444.10 and 387,194.20 is: 580,958.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,437.40 : 1,001,444.10 = 387,194.20 : x
  2. Step 2: Convert to fraction form
    667,437.40/1,001,444.10 = 387,194.20/x
  3. Step 3: Cross multiply
    667,437.40x = 1,001,444.10 × 387,194.20
  4. Step 4: Simplify right side
    667,437.40x = 387,753,347,144.22
  5. Step 5: Solve for x
    x = 387,753,347,144.22/667,437.40
  6. Step 6: Final answer
    x = 580,958.37

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1.5x scale

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.