Home / 693,170.56-1,039,854.90-213,438.88

Finding the Fourth Proportional to 693,170.56, 1,039,854.90 and 213,438.88

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Solution

The fourth proportional to 693,170.56, 1,039,854.90 and 213,438.88 is: 320,188.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,170.56 : 1,039,854.90 = 213,438.88 : x
  2. Step 2: Convert to fraction form
    693,170.56/1,039,854.90 = 213,438.88/x
  3. Step 3: Cross multiply
    693,170.56x = 1,039,854.90 × 213,438.88
  4. Step 4: Simplify right side
    693,170.56x = 221,945,465,218.51
  5. Step 5: Solve for x
    x = 221,945,465,218.51/693,170.56
  6. Step 6: Final answer
    x = 320,188.82

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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.