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Finding the Fourth Proportional to 658,062.84, 987,500.34 and 258,633.48

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Solution

The fourth proportional to 658,062.84, 987,500.34 and 258,633.48 is: 388,109.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,062.84 : 987,500.34 = 258,633.48 : x
  2. Step 2: Convert to fraction form
    658,062.84/987,500.34 = 258,633.48/x
  3. Step 3: Cross multiply
    658,062.84x = 987,500.34 × 258,633.48
  4. Step 4: Simplify right side
    658,062.84x = 255,400,649,435.38
  5. Step 5: Solve for x
    x = 255,400,649,435.38/658,062.84
  6. Step 6: Final answer
    x = 388,109.82

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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.