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Finding the Fourth Proportional to 551,391.20, 827,086.80 and 502,402.40

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Solution

The fourth proportional to 551,391.20, 827,086.80 and 502,402.40 is: 753,603.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    551,391.20 : 827,086.80 = 502,402.40 : x
  2. Step 2: Convert to fraction form
    551,391.20/827,086.80 = 502,402.40/x
  3. Step 3: Cross multiply
    551,391.20x = 827,086.80 × 502,402.40
  4. Step 4: Simplify right side
    551,391.20x = 415,530,393,328.32
  5. Step 5: Solve for x
    x = 415,530,393,328.32/551,391.20
  6. Step 6: Final answer
    x = 753,603.60

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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.