Home / 558,414.90-836,698.95-321,344.10

Finding the Fourth Proportional to 558,414.90, 836,698.95 and 321,344.10

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Solution

The fourth proportional to 558,414.90, 836,698.95 and 321,344.10 is: 481,484.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,414.90 : 836,698.95 = 321,344.10 : x
  2. Step 2: Convert to fraction form
    558,414.90/836,698.95 = 321,344.10/x
  3. Step 3: Cross multiply
    558,414.90x = 836,698.95 × 321,344.10
  4. Step 4: Simplify right side
    558,414.90x = 268,868,271,058.70
  5. Step 5: Solve for x
    x = 268,868,271,058.70/558,414.90
  6. Step 6: Final answer
    x = 481,484.77

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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.