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Finding the Fourth Proportional to 549,755.06, 758,661.39 and 308,039.31

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Solution

The fourth proportional to 549,755.06, 758,661.39 and 308,039.31 is: 425,093.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,755.06 : 758,661.39 = 308,039.31 : x
  2. Step 2: Convert to fraction form
    549,755.06/758,661.39 = 308,039.31/x
  3. Step 3: Cross multiply
    549,755.06x = 758,661.39 × 308,039.31
  4. Step 4: Simplify right side
    549,755.06x = 233,697,531,099.24
  5. Step 5: Solve for x
    x = 233,697,531,099.24/549,755.06
  6. Step 6: Final answer
    x = 425,093.92

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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.