Home / 1,040,432.10-1,560,648.15-978,224.10

Finding the Fourth Proportional to 1,040,432.10, 1,560,648.15 and 978,224.10

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Solution

The fourth proportional to 1,040,432.10, 1,560,648.15 and 978,224.10 is: 1,467,336.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,432.10 : 1,560,648.15 = 978,224.10 : x
  2. Step 2: Convert to fraction form
    1,040,432.10/1,560,648.15 = 978,224.10/x
  3. Step 3: Cross multiply
    1,040,432.10x = 1,560,648.15 × 978,224.10
  4. Step 4: Simplify right side
    1,040,432.10x = 1,526,663,631,950.41
  5. Step 5: Solve for x
    x = 1,526,663,631,950.41/1,040,432.10
  6. Step 6: Final answer
    x = 1,467,336.15

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Double scale
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Similar ratio
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1.5x scale

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.