Home / 1,072,909.56-1,479,999.20-669,801.72

Finding the Fourth Proportional to 1,072,909.56, 1,479,999.20 and 669,801.72

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Solution

The fourth proportional to 1,072,909.56, 1,479,999.20 and 669,801.72 is: 923,941.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,909.56 : 1,479,999.20 = 669,801.72 : x
  2. Step 2: Convert to fraction form
    1,072,909.56/1,479,999.20 = 669,801.72/x
  3. Step 3: Cross multiply
    1,072,909.56x = 1,479,999.20 × 669,801.72
  4. Step 4: Simplify right side
    1,072,909.56x = 991,306,009,758.62
  5. Step 5: Solve for x
    x = 991,306,009,758.62/1,072,909.56
  6. Step 6: Final answer
    x = 923,941.82

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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.