Home / 790,869.09-1,091,397.68-428,291.83

Finding the Fourth Proportional to 790,869.09, 1,091,397.68 and 428,291.83

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Solution

The fourth proportional to 790,869.09, 1,091,397.68 and 428,291.83 is: 591,041.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,869.09 : 1,091,397.68 = 428,291.83 : x
  2. Step 2: Convert to fraction form
    790,869.09/1,091,397.68 = 428,291.83/x
  3. Step 3: Cross multiply
    790,869.09x = 1,091,397.68 × 428,291.83
  4. Step 4: Simplify right side
    790,869.09x = 467,436,713,321.93
  5. Step 5: Solve for x
    x = 467,436,713,321.93/790,869.09
  6. Step 6: Final answer
    x = 591,041.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.