Home / 1,002,169.40-1,499,754.90-687,241.40

Finding the Fourth Proportional to 1,002,169.40, 1,499,754.90 and 687,241.40

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Solution

The fourth proportional to 1,002,169.40, 1,499,754.90 and 687,241.40 is: 1,028,462.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,002,169.40 : 1,499,754.90 = 687,241.40 : x
  2. Step 2: Convert to fraction form
    1,002,169.40/1,499,754.90 = 687,241.40/x
  3. Step 3: Cross multiply
    1,002,169.40x = 1,499,754.90 × 687,241.40
  4. Step 4: Simplify right side
    1,002,169.40x = 1,030,693,657,132.86
  5. Step 5: Solve for x
    x = 1,030,693,657,132.86/1,002,169.40
  6. Step 6: Final answer
    x = 1,028,462.51

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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.