Home / 790,839.18-1,091,359.10-428,263.61

Finding the Fourth Proportional to 790,839.18, 1,091,359.10 and 428,263.61

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Solution

The fourth proportional to 790,839.18, 1,091,359.10 and 428,263.61 is: 591,004.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,839.18 : 1,091,359.10 = 428,263.61 : x
  2. Step 2: Convert to fraction form
    790,839.18/1,091,359.10 = 428,263.61/x
  3. Step 3: Cross multiply
    790,839.18x = 1,091,359.10 × 428,263.61
  4. Step 4: Simplify right side
    790,839.18x = 467,389,383,586.22
  5. Step 5: Solve for x
    x = 467,389,383,586.22/790,839.18
  6. Step 6: Final answer
    x = 591,004.33

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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.