Home / 865,687.04-1,298,595.92-258,427.48

Finding the Fourth Proportional to 865,687.04, 1,298,595.92 and 258,427.48

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Solution

The fourth proportional to 865,687.04, 1,298,595.92 and 258,427.48 is: 387,660.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,687.04 : 1,298,595.92 = 258,427.48 : x
  2. Step 2: Convert to fraction form
    865,687.04/1,298,595.92 = 258,427.48/x
  3. Step 3: Cross multiply
    865,687.04x = 1,298,595.92 × 258,427.48
  4. Step 4: Simplify right side
    865,687.04x = 335,592,871,143.88
  5. Step 5: Solve for x
    x = 335,592,871,143.88/865,687.04
  6. Step 6: Final answer
    x = 387,660.73

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1.5x scale

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.