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Finding the Fourth Proportional to 543,805.60, 750,441.12 and 302,077.36

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Solution

The fourth proportional to 543,805.60, 750,441.12 and 302,077.36 is: 416,860.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,805.60 : 750,441.12 = 302,077.36 : x
  2. Step 2: Convert to fraction form
    543,805.60/750,441.12 = 302,077.36/x
  3. Step 3: Cross multiply
    543,805.60x = 750,441.12 × 302,077.36
  4. Step 4: Simplify right side
    543,805.60x = 226,691,272,365.04
  5. Step 5: Solve for x
    x = 226,691,272,365.04/543,805.60
  6. Step 6: Final answer
    x = 416,860.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.