Home / 690,744.08-1,034,180.62-521,732.72

Finding the Fourth Proportional to 690,744.08, 1,034,180.62 and 521,732.72

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Solution

The fourth proportional to 690,744.08, 1,034,180.62 and 521,732.72 is: 781,137.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,744.08 : 1,034,180.62 = 521,732.72 : x
  2. Step 2: Convert to fraction form
    690,744.08/1,034,180.62 = 521,732.72/x
  3. Step 3: Cross multiply
    690,744.08x = 1,034,180.62 × 521,732.72
  4. Step 4: Simplify right side
    690,744.08x = 539,565,867,843.89
  5. Step 5: Solve for x
    x = 539,565,867,843.89/690,744.08
  6. Step 6: Final answer
    x = 781,137.16

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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.