Home / 689,742.30-1,034,657.18-216,446.34

Finding the Fourth Proportional to 689,742.30, 1,034,657.18 and 216,446.34

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Solution

The fourth proportional to 689,742.30, 1,034,657.18 and 216,446.34 is: 324,683.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,742.30 : 1,034,657.18 = 216,446.34 : x
  2. Step 2: Convert to fraction form
    689,742.30/1,034,657.18 = 216,446.34/x
  3. Step 3: Cross multiply
    689,742.30x = 1,034,657.18 × 216,446.34
  4. Step 4: Simplify right side
    689,742.30x = 223,947,760,306.84
  5. Step 5: Solve for x
    x = 223,947,760,306.84/689,742.30
  6. Step 6: Final answer
    x = 324,683.23

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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.