Home / 780,077.92-1,170,262.16-247,455.40

Finding the Fourth Proportional to 780,077.92, 1,170,262.16 and 247,455.40

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Solution

The fourth proportional to 780,077.92, 1,170,262.16 and 247,455.40 is: 371,229.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,077.92 : 1,170,262.16 = 247,455.40 : x
  2. Step 2: Convert to fraction form
    780,077.92/1,170,262.16 = 247,455.40/x
  3. Step 3: Cross multiply
    780,077.92x = 1,170,262.16 × 247,455.40
  4. Step 4: Simplify right side
    780,077.92x = 289,587,690,907.66
  5. Step 5: Solve for x
    x = 289,587,690,907.66/780,077.92
  6. Step 6: Final answer
    x = 371,229.19

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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.