Home / 859,847.20-1,187,803.22-688,900.34

Finding the Fourth Proportional to 859,847.20, 1,187,803.22 and 688,900.34

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Solution

The fourth proportional to 859,847.20, 1,187,803.22 and 688,900.34 is: 951,655.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,847.20 : 1,187,803.22 = 688,900.34 : x
  2. Step 2: Convert to fraction form
    859,847.20/1,187,803.22 = 688,900.34/x
  3. Step 3: Cross multiply
    859,847.20x = 1,187,803.22 × 688,900.34
  4. Step 4: Simplify right side
    859,847.20x = 818,278,042,111.10
  5. Step 5: Solve for x
    x = 818,278,042,111.10/859,847.20
  6. Step 6: Final answer
    x = 951,655.18

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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.