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Finding the Fourth Proportional to 543,751.60, 814,014.60 and 404,129.20

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Solution

The fourth proportional to 543,751.60, 814,014.60 and 404,129.20 is: 604,995.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,751.60 : 814,014.60 = 404,129.20 : x
  2. Step 2: Convert to fraction form
    543,751.60/814,014.60 = 404,129.20/x
  3. Step 3: Cross multiply
    543,751.60x = 814,014.60 × 404,129.20
  4. Step 4: Simplify right side
    543,751.60x = 328,967,069,086.32
  5. Step 5: Solve for x
    x = 328,967,069,086.32/543,751.60
  6. Step 6: Final answer
    x = 604,995.13

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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.