Home / 1,040,963.40-1,561,445.10-331,063.20

Finding the Fourth Proportional to 1,040,963.40, 1,561,445.10 and 331,063.20

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Solution

The fourth proportional to 1,040,963.40, 1,561,445.10 and 331,063.20 is: 496,594.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,040,963.40 : 1,561,445.10 = 331,063.20 : x
  2. Step 2: Convert to fraction form
    1,040,963.40/1,561,445.10 = 331,063.20/x
  3. Step 3: Cross multiply
    1,040,963.40x = 1,561,445.10 × 331,063.20
  4. Step 4: Simplify right side
    1,040,963.40x = 516,937,011,430.32
  5. Step 5: Solve for x
    x = 516,937,011,430.32/1,040,963.40
  6. Step 6: Final answer
    x = 496,594.80

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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.