Home / 1,503,139.20-2,255,082.48-438,190.62

Finding the Fourth Proportional to 1,503,139.20, 2,255,082.48 and 438,190.62

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Solution

The fourth proportional to 1,503,139.20, 2,255,082.48 and 438,190.62 is: 657,394.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,503,139.20 : 2,255,082.48 = 438,190.62 : x
  2. Step 2: Convert to fraction form
    1,503,139.20/2,255,082.48 = 438,190.62/x
  3. Step 3: Cross multiply
    1,503,139.20x = 2,255,082.48 × 438,190.62
  4. Step 4: Simplify right side
    1,503,139.20x = 988,155,990,062.34
  5. Step 5: Solve for x
    x = 988,155,990,062.34/1,503,139.20
  6. Step 6: Final answer
    x = 657,394.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.