Home / 879,221.20-1,318,647.25-247,987.39

Finding the Fourth Proportional to 879,221.20, 1,318,647.25 and 247,987.39

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Solution

The fourth proportional to 879,221.20, 1,318,647.25 and 247,987.39 is: 371,929.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,221.20 : 1,318,647.25 = 247,987.39 : x
  2. Step 2: Convert to fraction form
    879,221.20/1,318,647.25 = 247,987.39/x
  3. Step 3: Cross multiply
    879,221.20x = 1,318,647.25 × 247,987.39
  4. Step 4: Simplify right side
    879,221.20x = 327,007,889,858.18
  5. Step 5: Solve for x
    x = 327,007,889,858.18/879,221.20
  6. Step 6: Final answer
    x = 371,929.03

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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.