Home / 689,314.10-1,034,003.55-216,014.90

Finding the Fourth Proportional to 689,314.10, 1,034,003.55 and 216,014.90

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Solution

The fourth proportional to 689,314.10, 1,034,003.55 and 216,014.90 is: 324,032.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,314.10 : 1,034,003.55 = 216,014.90 : x
  2. Step 2: Convert to fraction form
    689,314.10/1,034,003.55 = 216,014.90/x
  3. Step 3: Cross multiply
    689,314.10x = 1,034,003.55 × 216,014.90
  4. Step 4: Simplify right side
    689,314.10x = 223,360,173,452.90
  5. Step 5: Solve for x
    x = 223,360,173,452.90/689,314.10
  6. Step 6: Final answer
    x = 324,032.50

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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.