Home / 1,382,521.20-2,073,781.80-385,249.20

Finding the Fourth Proportional to 1,382,521.20, 2,073,781.80 and 385,249.20

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Solution

The fourth proportional to 1,382,521.20, 2,073,781.80 and 385,249.20 is: 577,873.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,382,521.20 : 2,073,781.80 = 385,249.20 : x
  2. Step 2: Convert to fraction form
    1,382,521.20/2,073,781.80 = 385,249.20/x
  3. Step 3: Cross multiply
    1,382,521.20x = 2,073,781.80 × 385,249.20
  4. Step 4: Simplify right side
    1,382,521.20x = 798,922,779,424.56
  5. Step 5: Solve for x
    x = 798,922,779,424.56/1,382,521.20
  6. Step 6: Final answer
    x = 577,873.80

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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.