Home / 865,970.19-1,298,727.68-258,614.37

Finding the Fourth Proportional to 865,970.19, 1,298,727.68 and 258,614.37

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Solution

The fourth proportional to 865,970.19, 1,298,727.68 and 258,614.37 is: 387,853.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    865,970.19 : 1,298,727.68 = 258,614.37 : x
  2. Step 2: Convert to fraction form
    865,970.19/1,298,727.68 = 258,614.37/x
  3. Step 3: Cross multiply
    865,970.19x = 1,298,727.68 × 258,614.37
  4. Step 4: Simplify right side
    865,970.19x = 335,869,639,471.69
  5. Step 5: Solve for x
    x = 335,869,639,471.69/865,970.19
  6. Step 6: Final answer
    x = 387,853.58

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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.