Home / 805,458.41-1,208,160.25-206,425.45

Finding the Fourth Proportional to 805,458.41, 1,208,160.25 and 206,425.45

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Solution

The fourth proportional to 805,458.41, 1,208,160.25 and 206,425.45 is: 309,631.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,458.41 : 1,208,160.25 = 206,425.45 : x
  2. Step 2: Convert to fraction form
    805,458.41/1,208,160.25 = 206,425.45/x
  3. Step 3: Cross multiply
    805,458.41x = 1,208,160.25 × 206,425.45
  4. Step 4: Simplify right side
    805,458.41x = 249,395,016,205.43
  5. Step 5: Solve for x
    x = 249,395,016,205.43/805,458.41
  6. Step 6: Final answer
    x = 309,631.15

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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.