Home / 689,503.20-1,034,254.80-216,226.72

Finding the Fourth Proportional to 689,503.20, 1,034,254.80 and 216,226.72

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Solution

The fourth proportional to 689,503.20, 1,034,254.80 and 216,226.72 is: 324,340.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,503.20 : 1,034,254.80 = 216,226.72 : x
  2. Step 2: Convert to fraction form
    689,503.20/1,034,254.80 = 216,226.72/x
  3. Step 3: Cross multiply
    689,503.20x = 1,034,254.80 × 216,226.72
  4. Step 4: Simplify right side
    689,503.20x = 223,633,523,048.26
  5. Step 5: Solve for x
    x = 223,633,523,048.26/689,503.20
  6. Step 6: Final answer
    x = 324,340.08

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Double scale
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Similar ratio
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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.