Home / 879,221.96-1,318,648.37-247,988.15

Finding the Fourth Proportional to 879,221.96, 1,318,648.37 and 247,988.15

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Solution

The fourth proportional to 879,221.96, 1,318,648.37 and 247,988.15 is: 371,930.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,221.96 : 1,318,648.37 = 247,988.15 : x
  2. Step 2: Convert to fraction form
    879,221.96/1,318,648.37 = 247,988.15/x
  3. Step 3: Cross multiply
    879,221.96x = 1,318,648.37 × 247,988.15
  4. Step 4: Simplify right side
    879,221.96x = 327,009,161,943.63
  5. Step 5: Solve for x
    x = 327,009,161,943.63/879,221.96
  6. Step 6: Final answer
    x = 371,930.16

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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.