Home / 790,589.70-1,091,014.20-428,013.63

Finding the Fourth Proportional to 790,589.70, 1,091,014.20 and 428,013.63

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Solution

The fourth proportional to 790,589.70, 1,091,014.20 and 428,013.63 is: 590,659.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,589.70 : 1,091,014.20 = 428,013.63 : x
  2. Step 2: Convert to fraction form
    790,589.70/1,091,014.20 = 428,013.63/x
  3. Step 3: Cross multiply
    790,589.70x = 1,091,014.20 × 428,013.63
  4. Step 4: Simplify right side
    790,589.70x = 466,968,948,123.55
  5. Step 5: Solve for x
    x = 466,968,948,123.55/790,589.70
  6. Step 6: Final answer
    x = 590,659.03

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Double scale
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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.