Home / 558,416.90-836,701.95-321,346.10

Finding the Fourth Proportional to 558,416.90, 836,701.95 and 321,346.10

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Solution

The fourth proportional to 558,416.90, 836,701.95 and 321,346.10 is: 481,487.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,416.90 : 836,701.95 = 321,346.10 : x
  2. Step 2: Convert to fraction form
    558,416.90/836,701.95 = 321,346.10/x
  3. Step 3: Cross multiply
    558,416.90x = 836,701.95 × 321,346.10
  4. Step 4: Simplify right side
    558,416.90x = 268,870,908,494.90
  5. Step 5: Solve for x
    x = 268,870,908,494.90/558,416.90
  6. Step 6: Final answer
    x = 481,487.77

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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.