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Finding the Fourth Proportional to 576,132.84, 863,041.77 and 287,072.60

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Solution

The fourth proportional to 576,132.84, 863,041.77 and 287,072.60 is: 430,032.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,132.84 : 863,041.77 = 287,072.60 : x
  2. Step 2: Convert to fraction form
    576,132.84/863,041.77 = 287,072.60/x
  3. Step 3: Cross multiply
    576,132.84x = 863,041.77 × 287,072.60
  4. Step 4: Simplify right side
    576,132.84x = 247,755,640,507.29
  5. Step 5: Solve for x
    x = 247,755,640,507.29/576,132.84
  6. Step 6: Final answer
    x = 430,032.14

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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.