Home / 689,422.60-1,034,166.30-216,123.40

Finding the Fourth Proportional to 689,422.60, 1,034,166.30 and 216,123.40

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Solution

The fourth proportional to 689,422.60, 1,034,166.30 and 216,123.40 is: 324,195.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,422.60 : 1,034,166.30 = 216,123.40 : x
  2. Step 2: Convert to fraction form
    689,422.60/1,034,166.30 = 216,123.40/x
  3. Step 3: Cross multiply
    689,422.60x = 1,034,166.30 × 216,123.40
  4. Step 4: Simplify right side
    689,422.60x = 223,507,536,921.42
  5. Step 5: Solve for x
    x = 223,507,536,921.42/689,422.60
  6. Step 6: Final answer
    x = 324,195.26

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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.