Home / 693,649.20-1,040,419.04-220,338.64

Finding the Fourth Proportional to 693,649.20, 1,040,419.04 and 220,338.64

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Solution

The fourth proportional to 693,649.20, 1,040,419.04 and 220,338.64 is: 330,490.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    693,649.20 : 1,040,419.04 = 220,338.64 : x
  2. Step 2: Convert to fraction form
    693,649.20/1,040,419.04 = 220,338.64/x
  3. Step 3: Cross multiply
    693,649.20x = 1,040,419.04 × 220,338.64
  4. Step 4: Simplify right side
    693,649.20x = 229,244,516,303.71
  5. Step 5: Solve for x
    x = 229,244,516,303.71/693,649.20
  6. Step 6: Final answer
    x = 330,490.57

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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.