Home / 857,725.34-1,286,597.23-258,691.69

Finding the Fourth Proportional to 857,725.34, 1,286,597.23 and 258,691.69

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Solution

The fourth proportional to 857,725.34, 1,286,597.23 and 258,691.69 is: 388,040.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,725.34 : 1,286,597.23 = 258,691.69 : x
  2. Step 2: Convert to fraction form
    857,725.34/1,286,597.23 = 258,691.69/x
  3. Step 3: Cross multiply
    857,725.34x = 1,286,597.23 × 258,691.69
  4. Step 4: Simplify right side
    857,725.34x = 332,832,007,675.50
  5. Step 5: Solve for x
    x = 332,832,007,675.50/857,725.34
  6. Step 6: Final answer
    x = 388,040.31

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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.