Home / 857,595.20-1,286,578.50-258,506.24

Finding the Fourth Proportional to 857,595.20, 1,286,578.50 and 258,506.24

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Solution

The fourth proportional to 857,595.20, 1,286,578.50 and 258,506.24 is: 387,815.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,595.20 : 1,286,578.50 = 258,506.24 : x
  2. Step 2: Convert to fraction form
    857,595.20/1,286,578.50 = 258,506.24/x
  3. Step 3: Cross multiply
    857,595.20x = 1,286,578.50 × 258,506.24
  4. Step 4: Simplify right side
    857,595.20x = 332,588,570,499.84
  5. Step 5: Solve for x
    x = 332,588,570,499.84/857,595.20
  6. Step 6: Final answer
    x = 387,815.34

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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.