Home / 815,389.12-1,222,777.50-282,781.72

Finding the Fourth Proportional to 815,389.12, 1,222,777.50 and 282,781.72

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Solution

The fourth proportional to 815,389.12, 1,222,777.50 and 282,781.72 is: 424,066.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,389.12 : 1,222,777.50 = 282,781.72 : x
  2. Step 2: Convert to fraction form
    815,389.12/1,222,777.50 = 282,781.72/x
  3. Step 3: Cross multiply
    815,389.12x = 1,222,777.50 × 282,781.72
  4. Step 4: Simplify right side
    815,389.12x = 345,779,124,627.30
  5. Step 5: Solve for x
    x = 345,779,124,627.30/815,389.12
  6. Step 6: Final answer
    x = 424,066.39

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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.