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Finding the Fourth Proportional to 518,422.75, 777,634.14 and 124,438.75

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Solution

The fourth proportional to 518,422.75, 777,634.14 and 124,438.75 is: 186,658.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,422.75 : 777,634.14 = 124,438.75 : x
  2. Step 2: Convert to fraction form
    518,422.75/777,634.14 = 124,438.75/x
  3. Step 3: Cross multiply
    518,422.75x = 777,634.14 × 124,438.75
  4. Step 4: Simplify right side
    518,422.75x = 96,767,820,338.93
  5. Step 5: Solve for x
    x = 96,767,820,338.93/518,422.75
  6. Step 6: Final answer
    x = 186,658.13

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1.5x scale

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.