Home / 857,301.31-1,286,000.57-258,345.19

Finding the Fourth Proportional to 857,301.31, 1,286,000.57 and 258,345.19

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Solution

The fourth proportional to 857,301.31, 1,286,000.57 and 258,345.19 is: 387,532.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    857,301.31 : 1,286,000.57 = 258,345.19 : x
  2. Step 2: Convert to fraction form
    857,301.31/1,286,000.57 = 258,345.19/x
  3. Step 3: Cross multiply
    857,301.31x = 1,286,000.57 × 258,345.19
  4. Step 4: Simplify right side
    857,301.31x = 332,232,061,596.76
  5. Step 5: Solve for x
    x = 332,232,061,596.76/857,301.31
  6. Step 6: Final answer
    x = 387,532.43

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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.