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Finding the Fourth Proportional to 632,661.45, 948,995.78 and 258,684.45

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Solution

The fourth proportional to 632,661.45, 948,995.78 and 258,684.45 is: 388,028.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,661.45 : 948,995.78 = 258,684.45 : x
  2. Step 2: Convert to fraction form
    632,661.45/948,995.78 = 258,684.45/x
  3. Step 3: Cross multiply
    632,661.45x = 948,995.78 × 258,684.45
  4. Step 4: Simplify right side
    632,661.45x = 245,490,450,108.20
  5. Step 5: Solve for x
    x = 245,490,450,108.20/632,661.45
  6. Step 6: Final answer
    x = 388,028.15

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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.