Home / 971,422.38-1,456,251.39-339,991.74

Finding the Fourth Proportional to 971,422.38, 1,456,251.39 and 339,991.74

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Solution

The fourth proportional to 971,422.38, 1,456,251.39 and 339,991.74 is: 509,678.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    971,422.38 : 1,456,251.39 = 339,991.74 : x
  2. Step 2: Convert to fraction form
    971,422.38/1,456,251.39 = 339,991.74/x
  3. Step 3: Cross multiply
    971,422.38x = 1,456,251.39 × 339,991.74
  4. Step 4: Simplify right side
    971,422.38x = 495,113,443,963.52
  5. Step 5: Solve for x
    x = 495,113,443,963.52/971,422.38
  6. Step 6: Final answer
    x = 509,678.85

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1.5x scale

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.