Home / 693,573.10-1,040,359.65-220,306.30

Finding the Fourth Proportional to 693,573.10, 1,040,359.65 and 220,306.30

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Solution

The fourth proportional to 693,573.10, 1,040,359.65 and 220,306.30 is: 330,459.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,573.10 : 1,040,359.65 = 220,306.30 : x
  2. Step 2: Convert to fraction form
    693,573.10/1,040,359.65 = 220,306.30/x
  3. Step 3: Cross multiply
    693,573.10x = 1,040,359.65 × 220,306.30
  4. Step 4: Simplify right side
    693,573.10x = 229,197,785,160.80
  5. Step 5: Solve for x
    x = 229,197,785,160.80/693,573.10
  6. Step 6: Final answer
    x = 330,459.45

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Double scale
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Similar ratio
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1.5x scale

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.