Home / 859,777.97-1,187,707.80-688,831.11

Finding the Fourth Proportional to 859,777.97, 1,187,707.80 and 688,831.11

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Solution

The fourth proportional to 859,777.97, 1,187,707.80 and 688,831.11 is: 951,559.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,777.97 : 1,187,707.80 = 688,831.11 : x
  2. Step 2: Convert to fraction form
    859,777.97/1,187,707.80 = 688,831.11/x
  3. Step 3: Cross multiply
    859,777.97x = 1,187,707.80 × 688,831.11
  4. Step 4: Simplify right side
    859,777.97x = 818,130,082,229.66
  5. Step 5: Solve for x
    x = 818,130,082,229.66/859,777.97
  6. Step 6: Final answer
    x = 951,559.72

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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.