Home / 857,827.73-1,286,750.88-258,794.12

Finding the Fourth Proportional to 857,827.73, 1,286,750.88 and 258,794.12

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Solution

The fourth proportional to 857,827.73, 1,286,750.88 and 258,794.12 is: 388,193.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,827.73 : 1,286,750.88 = 258,794.12 : x
  2. Step 2: Convert to fraction form
    857,827.73/1,286,750.88 = 258,794.12/x
  3. Step 3: Cross multiply
    857,827.73x = 1,286,750.88 × 258,794.12
  4. Step 4: Simplify right side
    857,827.73x = 333,003,564,865.70
  5. Step 5: Solve for x
    x = 333,003,564,865.70/857,827.73
  6. Step 6: Final answer
    x = 388,193.98

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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.