Home / 1,338,920.80-2,008,381.20-452,456.80

Finding the Fourth Proportional to 1,338,920.80, 2,008,381.20 and 452,456.80

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Solution

The fourth proportional to 1,338,920.80, 2,008,381.20 and 452,456.80 is: 678,685.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,338,920.80 : 2,008,381.20 = 452,456.80 : x
  2. Step 2: Convert to fraction form
    1,338,920.80/2,008,381.20 = 452,456.80/x
  3. Step 3: Cross multiply
    1,338,920.80x = 2,008,381.20 × 452,456.80
  4. Step 4: Simplify right side
    1,338,920.80x = 908,705,730,932.16
  5. Step 5: Solve for x
    x = 908,705,730,932.16/1,338,920.80
  6. Step 6: Final answer
    x = 678,685.20

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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.