Home / 790,769.80-1,091,262.90-428,196.52

Finding the Fourth Proportional to 790,769.80, 1,091,262.90 and 428,196.52

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Solution

The fourth proportional to 790,769.80, 1,091,262.90 and 428,196.52 is: 590,911.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,769.80 : 1,091,262.90 = 428,196.52 : x
  2. Step 2: Convert to fraction form
    790,769.80/1,091,262.90 = 428,196.52/x
  3. Step 3: Cross multiply
    790,769.80x = 1,091,262.90 × 428,196.52
  4. Step 4: Simplify right side
    790,769.80x = 467,274,976,185.11
  5. Step 5: Solve for x
    x = 467,274,976,185.11/790,769.80
  6. Step 6: Final answer
    x = 590,911.51

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1.5x scale

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.