Home / 986,233.80-1,479,350.70-425,268.30

Finding the Fourth Proportional to 986,233.80, 1,479,350.70 and 425,268.30

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Solution

The fourth proportional to 986,233.80, 1,479,350.70 and 425,268.30 is: 637,902.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,233.80 : 1,479,350.70 = 425,268.30 : x
  2. Step 2: Convert to fraction form
    986,233.80/1,479,350.70 = 425,268.30/x
  3. Step 3: Cross multiply
    986,233.80x = 1,479,350.70 × 425,268.30
  4. Step 4: Simplify right side
    986,233.80x = 629,120,957,292.81
  5. Step 5: Solve for x
    x = 629,120,957,292.81/986,233.80
  6. Step 6: Final answer
    x = 637,902.45

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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.