Home / 689,561.60-1,034,342.24-216,288.32

Finding the Fourth Proportional to 689,561.60, 1,034,342.24 and 216,288.32

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Solution

The fourth proportional to 689,561.60, 1,034,342.24 and 216,288.32 is: 324,432.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,561.60 : 1,034,342.24 = 216,288.32 : x
  2. Step 2: Convert to fraction form
    689,561.60/1,034,342.24 = 216,288.32/x
  3. Step 3: Cross multiply
    689,561.60x = 1,034,342.24 × 216,288.32
  4. Step 4: Simplify right side
    689,561.60x = 223,716,145,394.64
  5. Step 5: Solve for x
    x = 223,716,145,394.64/689,561.60
  6. Step 6: Final answer
    x = 324,432.43

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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.