Home / 992,145.57-1,487,861.01-343,545.51

Finding the Fourth Proportional to 992,145.57, 1,487,861.01 and 343,545.51

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Solution

The fourth proportional to 992,145.57, 1,487,861.01 and 343,545.51 is: 515,194.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    992,145.57 : 1,487,861.01 = 343,545.51 : x
  2. Step 2: Convert to fraction form
    992,145.57/1,487,861.01 = 343,545.51/x
  3. Step 3: Cross multiply
    992,145.57x = 1,487,861.01 × 343,545.51
  4. Step 4: Simplify right side
    992,145.57x = 511,147,969,489.57
  5. Step 5: Solve for x
    x = 511,147,969,489.57/992,145.57
  6. Step 6: Final answer
    x = 515,194.53

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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.