Home / 709,934.40-1,064,901.60-443,995.20

Finding the Fourth Proportional to 709,934.40, 1,064,901.60 and 443,995.20

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Solution

The fourth proportional to 709,934.40, 1,064,901.60 and 443,995.20 is: 665,992.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,934.40 : 1,064,901.60 = 443,995.20 : x
  2. Step 2: Convert to fraction form
    709,934.40/1,064,901.60 = 443,995.20/x
  3. Step 3: Cross multiply
    709,934.40x = 1,064,901.60 × 443,995.20
  4. Step 4: Simplify right side
    709,934.40x = 472,811,198,872.32
  5. Step 5: Solve for x
    x = 472,811,198,872.32/709,934.40
  6. Step 6: Final answer
    x = 665,992.80

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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.