Home / 1,330,778.40-1,996,459.20-432,067.20

Finding the Fourth Proportional to 1,330,778.40, 1,996,459.20 and 432,067.20

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Solution

The fourth proportional to 1,330,778.40, 1,996,459.20 and 432,067.20 is: 648,195.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,778.40 : 1,996,459.20 = 432,067.20 : x
  2. Step 2: Convert to fraction form
    1,330,778.40/1,996,459.20 = 432,067.20/x
  3. Step 3: Cross multiply
    1,330,778.40x = 1,996,459.20 × 432,067.20
  4. Step 4: Simplify right side
    1,330,778.40x = 862,604,536,458.24
  5. Step 5: Solve for x
    x = 862,604,536,458.24/1,330,778.40
  6. Step 6: Final answer
    x = 648,195.47

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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.