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Finding the Fourth Proportional to 576,761.08, 863,981.46 and 287,701.24

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Solution

The fourth proportional to 576,761.08, 863,981.46 and 287,701.24 is: 430,973.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,761.08 : 863,981.46 = 287,701.24 : x
  2. Step 2: Convert to fraction form
    576,761.08/863,981.46 = 287,701.24/x
  3. Step 3: Cross multiply
    576,761.08x = 863,981.46 × 287,701.24
  4. Step 4: Simplify right side
    576,761.08x = 248,568,537,379.01
  5. Step 5: Solve for x
    x = 248,568,537,379.01/576,761.08
  6. Step 6: Final answer
    x = 430,973.15

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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.