Home / 1,139,059.44-1,571,882.76-812,972.88

Finding the Fourth Proportional to 1,139,059.44, 1,571,882.76 and 812,972.88

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Solution

The fourth proportional to 1,139,059.44, 1,571,882.76 and 812,972.88 is: 1,121,888.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,139,059.44 : 1,571,882.76 = 812,972.88 : x
  2. Step 2: Convert to fraction form
    1,139,059.44/1,571,882.76 = 812,972.88/x
  3. Step 3: Cross multiply
    1,139,059.44x = 1,571,882.76 × 812,972.88
  4. Step 4: Simplify right side
    1,139,059.44x = 1,277,898,054,419.55
  5. Step 5: Solve for x
    x = 1,277,898,054,419.55/1,139,059.44
  6. Step 6: Final answer
    x = 1,121,888.82

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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.