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Finding the Fourth Proportional to 552,663.20, 828,994.80 and 487,344.80

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Solution

The fourth proportional to 552,663.20, 828,994.80 and 487,344.80 is: 731,017.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,663.20 : 828,994.80 = 487,344.80 : x
  2. Step 2: Convert to fraction form
    552,663.20/828,994.80 = 487,344.80/x
  3. Step 3: Cross multiply
    552,663.20x = 828,994.80 × 487,344.80
  4. Step 4: Simplify right side
    552,663.20x = 404,006,305,007.04
  5. Step 5: Solve for x
    x = 404,006,305,007.04/552,663.20
  6. Step 6: Final answer
    x = 731,017.20

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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.