Home / 853,278.03-1,280,101.79-254,287.42

Finding the Fourth Proportional to 853,278.03, 1,280,101.79 and 254,287.42

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Solution

The fourth proportional to 853,278.03, 1,280,101.79 and 254,287.42 is: 381,486.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    853,278.03 : 1,280,101.79 = 254,287.42 : x
  2. Step 2: Convert to fraction form
    853,278.03/1,280,101.79 = 254,287.42/x
  3. Step 3: Cross multiply
    853,278.03x = 1,280,101.79 × 254,287.42
  4. Step 4: Simplify right side
    853,278.03x = 325,513,778,951.95
  5. Step 5: Solve for x
    x = 325,513,778,951.95/853,278.03
  6. Step 6: Final answer
    x = 381,486.18

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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.