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Finding the Fourth Proportional to 632,649.68, 948,978.16 and 258,672.68

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Solution

The fourth proportional to 632,649.68, 948,978.16 and 258,672.68 is: 388,010.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,649.68 : 948,978.16 = 258,672.68 : x
  2. Step 2: Convert to fraction form
    632,649.68/948,978.16 = 258,672.68/x
  3. Step 3: Cross multiply
    632,649.68x = 948,978.16 × 258,672.68
  4. Step 4: Simplify right side
    632,649.68x = 245,474,723,908.67
  5. Step 5: Solve for x
    x = 245,474,723,908.67/632,649.68
  6. Step 6: Final answer
    x = 388,010.51

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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.