Home / 1,040,144.10-1,560,216.15-921,948.90

Finding the Fourth Proportional to 1,040,144.10, 1,560,216.15 and 921,948.90

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Solution

The fourth proportional to 1,040,144.10, 1,560,216.15 and 921,948.90 is: 1,382,923.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,144.10 : 1,560,216.15 = 921,948.90 : x
  2. Step 2: Convert to fraction form
    1,040,144.10/1,560,216.15 = 921,948.90/x
  3. Step 3: Cross multiply
    1,040,144.10x = 1,560,216.15 × 921,948.90
  4. Step 4: Simplify right side
    1,040,144.10x = 1,438,439,563,254.74
  5. Step 5: Solve for x
    x = 1,438,439,563,254.74/1,040,144.10
  6. Step 6: Final answer
    x = 1,382,923.35

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Double scale
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Similar ratio
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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.