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Finding the Fourth Proportional to 658,061.84, 987,498.84 and 258,632.48

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Solution

The fourth proportional to 658,061.84, 987,498.84 and 258,632.48 is: 388,108.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,061.84 : 987,498.84 = 258,632.48 : x
  2. Step 2: Convert to fraction form
    658,061.84/987,498.84 = 258,632.48/x
  3. Step 3: Cross multiply
    658,061.84x = 987,498.84 × 258,632.48
  4. Step 4: Simplify right side
    658,061.84x = 255,399,273,986.32
  5. Step 5: Solve for x
    x = 255,399,273,986.32/658,061.84
  6. Step 6: Final answer
    x = 388,108.32

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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.