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Finding the Fourth Proportional to 549,337.98, 758,086.29 and 304,338.66

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Solution

The fourth proportional to 549,337.98, 758,086.29 and 304,338.66 is: 419,987.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,337.98 : 758,086.29 = 304,338.66 : x
  2. Step 2: Convert to fraction form
    549,337.98/758,086.29 = 304,338.66/x
  3. Step 3: Cross multiply
    549,337.98x = 758,086.29 × 304,338.66
  4. Step 4: Simplify right side
    549,337.98x = 230,714,965,662.97
  5. Step 5: Solve for x
    x = 230,714,965,662.97/549,337.98
  6. Step 6: Final answer
    x = 419,987.28

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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.