Home / 1,154,419.38-1,593,100.91-645,121.76

Finding the Fourth Proportional to 1,154,419.38, 1,593,100.91 and 645,121.76

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Solution

The fourth proportional to 1,154,419.38, 1,593,100.91 and 645,121.76 is: 890,269.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,154,419.38 : 1,593,100.91 = 645,121.76 : x
  2. Step 2: Convert to fraction form
    1,154,419.38/1,593,100.91 = 645,121.76/x
  3. Step 3: Cross multiply
    1,154,419.38x = 1,593,100.91 × 645,121.76
  4. Step 4: Simplify right side
    1,154,419.38x = 1,027,744,058,934.05
  5. Step 5: Solve for x
    x = 1,027,744,058,934.05/1,154,419.38
  6. Step 6: Final answer
    x = 890,269.23

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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.