Home / 857,373.52-1,286,046.90-208,957.12

Finding the Fourth Proportional to 857,373.52, 1,286,046.90 and 208,957.12

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Solution

The fourth proportional to 857,373.52, 1,286,046.90 and 208,957.12 is: 313,432.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,373.52 : 1,286,046.90 = 208,957.12 : x
  2. Step 2: Convert to fraction form
    857,373.52/1,286,046.90 = 208,957.12/x
  3. Step 3: Cross multiply
    857,373.52x = 1,286,046.90 × 208,957.12
  4. Step 4: Simplify right side
    857,373.52x = 268,728,656,408.93
  5. Step 5: Solve for x
    x = 268,728,656,408.93/857,373.52
  6. Step 6: Final answer
    x = 313,432.42

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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.