Home / 852,731.29-1,278,422.20-320,193.01

Finding the Fourth Proportional to 852,731.29, 1,278,422.20 and 320,193.01

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Solution

The fourth proportional to 852,731.29, 1,278,422.20 and 320,193.01 is: 480,036.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    852,731.29 : 1,278,422.20 = 320,193.01 : x
  2. Step 2: Convert to fraction form
    852,731.29/1,278,422.20 = 320,193.01/x
  3. Step 3: Cross multiply
    852,731.29x = 1,278,422.20 × 320,193.01
  4. Step 4: Simplify right side
    852,731.29x = 409,341,852,268.82
  5. Step 5: Solve for x
    x = 409,341,852,268.82/852,731.29
  6. Step 6: Final answer
    x = 480,036.16

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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.