Home / 689,672.60-1,034,510.10-216,394.28

Finding the Fourth Proportional to 689,672.60, 1,034,510.10 and 216,394.28

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Solution

The fourth proportional to 689,672.60, 1,034,510.10 and 216,394.28 is: 324,591.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,672.60 : 1,034,510.10 = 216,394.28 : x
  2. Step 2: Convert to fraction form
    689,672.60/1,034,510.10 = 216,394.28/x
  3. Step 3: Cross multiply
    689,672.60x = 1,034,510.10 × 216,394.28
  4. Step 4: Simplify right side
    689,672.60x = 223,862,068,242.23
  5. Step 5: Solve for x
    x = 223,862,068,242.23/689,672.60
  6. Step 6: Final answer
    x = 324,591.80

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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.