Home / 859,845.20-1,187,800.46-688,898.34

Finding the Fourth Proportional to 859,845.20, 1,187,800.46 and 688,898.34

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Solution

The fourth proportional to 859,845.20, 1,187,800.46 and 688,898.34 is: 951,652.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,845.20 : 1,187,800.46 = 688,898.34 : x
  2. Step 2: Convert to fraction form
    859,845.20/1,187,800.46 = 688,898.34/x
  3. Step 3: Cross multiply
    859,845.20x = 1,187,800.46 × 688,898.34
  4. Step 4: Simplify right side
    859,845.20x = 818,273,761,700.75
  5. Step 5: Solve for x
    x = 818,273,761,700.75/859,845.20
  6. Step 6: Final answer
    x = 951,652.42

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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.