Home / 878,009.88-1,317,242.07-270,784.78

Finding the Fourth Proportional to 878,009.88, 1,317,242.07 and 270,784.78

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Solution

The fourth proportional to 878,009.88, 1,317,242.07 and 270,784.78 is: 406,247.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,009.88 : 1,317,242.07 = 270,784.78 : x
  2. Step 2: Convert to fraction form
    878,009.88/1,317,242.07 = 270,784.78/x
  3. Step 3: Cross multiply
    878,009.88x = 1,317,242.07 × 270,784.78
  4. Step 4: Simplify right side
    878,009.88x = 356,689,104,131.70
  5. Step 5: Solve for x
    x = 356,689,104,131.70/878,009.88
  6. Step 6: Final answer
    x = 406,247.26

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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.