Home / 765,405.59-1,148,367.83-338,882.58

Finding the Fourth Proportional to 765,405.59, 1,148,367.83 and 338,882.58

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Solution

The fourth proportional to 765,405.59, 1,148,367.83 and 338,882.58 is: 508,438.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,405.59 : 1,148,367.83 = 338,882.58 : x
  2. Step 2: Convert to fraction form
    765,405.59/1,148,367.83 = 338,882.58/x
  3. Step 3: Cross multiply
    765,405.59x = 1,148,367.83 × 338,882.58
  4. Step 4: Simplify right side
    765,405.59x = 389,161,851,324.99
  5. Step 5: Solve for x
    x = 389,161,851,324.99/765,405.59
  6. Step 6: Final answer
    x = 508,438.74

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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.