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Finding the Fourth Proportional to 558,293.97, 837,785.42 and 258,718.71

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Solution

The fourth proportional to 558,293.97, 837,785.42 and 258,718.71 is: 388,237.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,293.97 : 837,785.42 = 258,718.71 : x
  2. Step 2: Convert to fraction form
    558,293.97/837,785.42 = 258,718.71/x
  3. Step 3: Cross multiply
    558,293.97x = 837,785.42 × 258,718.71
  4. Step 4: Simplify right side
    558,293.97x = 216,750,761,825.62
  5. Step 5: Solve for x
    x = 216,750,761,825.62/558,293.97
  6. Step 6: Final answer
    x = 388,237.69

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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.