Home / 658,402.06-987,595.80-209,110.90

Finding the Fourth Proportional to 658,402.06, 987,595.80 and 209,110.90

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Solution

The fourth proportional to 658,402.06, 987,595.80 and 209,110.90 is: 313,664.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,402.06 : 987,595.80 = 209,110.90 : x
  2. Step 2: Convert to fraction form
    658,402.06/987,595.80 = 209,110.90/x
  3. Step 3: Cross multiply
    658,402.06x = 987,595.80 × 209,110.90
  4. Step 4: Simplify right side
    658,402.06x = 206,517,046,574.22
  5. Step 5: Solve for x
    x = 206,517,046,574.22/658,402.06
  6. Step 6: Final answer
    x = 313,664.03

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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.