Home / 684,752.20-1,027,128.30-517,446.70

Finding the Fourth Proportional to 684,752.20, 1,027,128.30 and 517,446.70

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Solution

The fourth proportional to 684,752.20, 1,027,128.30 and 517,446.70 is: 776,170.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,752.20 : 1,027,128.30 = 517,446.70 : x
  2. Step 2: Convert to fraction form
    684,752.20/1,027,128.30 = 517,446.70/x
  3. Step 3: Cross multiply
    684,752.20x = 1,027,128.30 × 517,446.70
  4. Step 4: Simplify right side
    684,752.20x = 531,484,149,311.61
  5. Step 5: Solve for x
    x = 531,484,149,311.61/684,752.20
  6. Step 6: Final answer
    x = 776,170.05

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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.