Home / 389,042.28-537,057.63-274,414.32

Finding the Fourth Proportional to 389,042.28, 537,057.63 and 274,414.32

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Solution

The fourth proportional to 389,042.28, 537,057.63 and 274,414.32 is: 378,818.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,042.28 : 537,057.63 = 274,414.32 : x
  2. Step 2: Convert to fraction form
    389,042.28/537,057.63 = 274,414.32/x
  3. Step 3: Cross multiply
    389,042.28x = 537,057.63 × 274,414.32
  4. Step 4: Simplify right side
    389,042.28x = 147,376,304,337.26
  5. Step 5: Solve for x
    x = 147,376,304,337.26/389,042.28
  6. Step 6: Final answer
    x = 378,818.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.