Home / 549,971.20-758,947.62-320,513.86

Finding the Fourth Proportional to 549,971.20, 758,947.62 and 320,513.86

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Solution

The fourth proportional to 549,971.20, 758,947.62 and 320,513.86 is: 442,301.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    549,971.20 : 758,947.62 = 320,513.86 : x
  2. Step 2: Convert to fraction form
    549,971.20/758,947.62 = 320,513.86/x
  3. Step 3: Cross multiply
    549,971.20x = 758,947.62 × 320,513.86
  4. Step 4: Simplify right side
    549,971.20x = 243,253,231,224.01
  5. Step 5: Solve for x
    x = 243,253,231,224.01/549,971.20
  6. Step 6: Final answer
    x = 442,301.76

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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.