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Finding the Fourth Proportional to 576,911.16, 865,473.26 and 288,874.76

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Solution

The fourth proportional to 576,911.16, 865,473.26 and 288,874.76 is: 433,365.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,911.16 : 865,473.26 = 288,874.76 : x
  2. Step 2: Convert to fraction form
    576,911.16/865,473.26 = 288,874.76/x
  3. Step 3: Cross multiply
    576,911.16x = 865,473.26 × 288,874.76
  4. Step 4: Simplify right side
    576,911.16x = 250,013,374,497.18
  5. Step 5: Solve for x
    x = 250,013,374,497.18/576,911.16
  6. Step 6: Final answer
    x = 433,365.47

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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.