Home / 1,151,599.76-1,589,209.92-642,335.12

Finding the Fourth Proportional to 1,151,599.76, 1,589,209.92 and 642,335.12

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Solution

The fourth proportional to 1,151,599.76, 1,589,209.92 and 642,335.12 is: 886,423.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,151,599.76 : 1,589,209.92 = 642,335.12 : x
  2. Step 2: Convert to fraction form
    1,151,599.76/1,589,209.92 = 642,335.12/x
  3. Step 3: Cross multiply
    1,151,599.76x = 1,589,209.92 × 642,335.12
  4. Step 4: Simplify right side
    1,151,599.76x = 1,020,805,344,668.39
  5. Step 5: Solve for x
    x = 1,020,805,344,668.39/1,151,599.76
  6. Step 6: Final answer
    x = 886,423.72

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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.