Home / 1,386,124.20-2,079,184.96-521,720.52

Finding the Fourth Proportional to 1,386,124.20, 2,079,184.96 and 521,720.52

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Solution

The fourth proportional to 1,386,124.20, 2,079,184.96 and 521,720.52 is: 782,580.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,386,124.20 : 2,079,184.96 = 521,720.52 : x
  2. Step 2: Convert to fraction form
    1,386,124.20/2,079,184.96 = 521,720.52/x
  3. Step 3: Cross multiply
    1,386,124.20x = 2,079,184.96 × 521,720.52
  4. Step 4: Simplify right side
    1,386,124.20x = 1,084,753,458,507.38
  5. Step 5: Solve for x
    x = 1,084,753,458,507.38/1,386,124.20
  6. Step 6: Final answer
    x = 782,580.28

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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.