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Finding the Fourth Proportional to 549,009.43, 757,625.15 and 303,970.71

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Solution

The fourth proportional to 549,009.43, 757,625.15 and 303,970.71 is: 419,475.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,009.43 : 757,625.15 = 303,970.71 : x
  2. Step 2: Convert to fraction form
    549,009.43/757,625.15 = 303,970.71/x
  3. Step 3: Cross multiply
    549,009.43x = 757,625.15 × 303,970.71
  4. Step 4: Simplify right side
    549,009.43x = 230,295,850,971.23
  5. Step 5: Solve for x
    x = 230,295,850,971.23/549,009.43
  6. Step 6: Final answer
    x = 419,475.22

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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.