Home / 643,727.20-966,028.20-359,417.20

Finding the Fourth Proportional to 643,727.20, 966,028.20 and 359,417.20

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Solution

The fourth proportional to 643,727.20, 966,028.20 and 359,417.20 is: 539,370.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,727.20 : 966,028.20 = 359,417.20 : x
  2. Step 2: Convert to fraction form
    643,727.20/966,028.20 = 359,417.20/x
  3. Step 3: Cross multiply
    643,727.20x = 966,028.20 × 359,417.20
  4. Step 4: Simplify right side
    643,727.20x = 347,207,150,765.04
  5. Step 5: Solve for x
    x = 347,207,150,765.04/643,727.20
  6. Step 6: Final answer
    x = 539,370.02

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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.