Home / 389,001.51-582,501.92-312,741.63

Finding the Fourth Proportional to 389,001.51, 582,501.92 and 312,741.63

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Solution

The fourth proportional to 389,001.51, 582,501.92 and 312,741.63 is: 468,308.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,001.51 : 582,501.92 = 312,741.63 : x
  2. Step 2: Convert to fraction form
    389,001.51/582,501.92 = 312,741.63/x
  3. Step 3: Cross multiply
    389,001.51x = 582,501.92 × 312,741.63
  4. Step 4: Simplify right side
    389,001.51x = 182,172,598,375.22
  5. Step 5: Solve for x
    x = 182,172,598,375.22/389,001.51
  6. Step 6: Final answer
    x = 468,308.20

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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.