Home / 417,980.40-576,989.43-282,198.18

Finding the Fourth Proportional to 417,980.40, 576,989.43 and 282,198.18

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Solution

The fourth proportional to 417,980.40, 576,989.43 and 282,198.18 is: 389,552.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,980.40 : 576,989.43 = 282,198.18 : x
  2. Step 2: Convert to fraction form
    417,980.40/576,989.43 = 282,198.18/x
  3. Step 3: Cross multiply
    417,980.40x = 576,989.43 × 282,198.18
  4. Step 4: Simplify right side
    417,980.40x = 162,825,367,025.24
  5. Step 5: Solve for x
    x = 162,825,367,025.24/417,980.40
  6. Step 6: Final answer
    x = 389,552.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.