Home / 765,679.50-1,148,431.68-204,757.74

Finding the Fourth Proportional to 765,679.50, 1,148,431.68 and 204,757.74

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Solution

The fourth proportional to 765,679.50, 1,148,431.68 and 204,757.74 is: 307,113.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,679.50 : 1,148,431.68 = 204,757.74 : x
  2. Step 2: Convert to fraction form
    765,679.50/1,148,431.68 = 204,757.74/x
  3. Step 3: Cross multiply
    765,679.50x = 1,148,431.68 × 204,757.74
  4. Step 4: Simplify right side
    765,679.50x = 235,150,275,341.20
  5. Step 5: Solve for x
    x = 235,150,275,341.20/765,679.50
  6. Step 6: Final answer
    x = 307,113.19

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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.