Home / 765,678.01-1,149,225.92-386,865.35

Finding the Fourth Proportional to 765,678.01, 1,149,225.92 and 386,865.35

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Solution

The fourth proportional to 765,678.01, 1,149,225.92 and 386,865.35 is: 580,656.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,678.01 : 1,149,225.92 = 386,865.35 : x
  2. Step 2: Convert to fraction form
    765,678.01/1,149,225.92 = 386,865.35/x
  3. Step 3: Cross multiply
    765,678.01x = 1,149,225.92 × 386,865.35
  4. Step 4: Simplify right side
    765,678.01x = 444,595,687,769.87
  5. Step 5: Solve for x
    x = 444,595,687,769.87/765,678.01
  6. Step 6: Final answer
    x = 580,656.21

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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.