Home / 960,030.20-1,440,045.30-661,431.80

Finding the Fourth Proportional to 960,030.20, 1,440,045.30 and 661,431.80

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Solution

The fourth proportional to 960,030.20, 1,440,045.30 and 661,431.80 is: 992,147.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    960,030.20 : 1,440,045.30 = 661,431.80 : x
  2. Step 2: Convert to fraction form
    960,030.20/1,440,045.30 = 661,431.80/x
  3. Step 3: Cross multiply
    960,030.20x = 1,440,045.30 × 661,431.80
  4. Step 4: Simplify right side
    960,030.20x = 952,491,754,860.54
  5. Step 5: Solve for x
    x = 952,491,754,860.54/960,030.20
  6. Step 6: Final answer
    x = 992,147.70

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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.