Home / 1,206,721.20-1,810,081.80-786,817.20

Finding the Fourth Proportional to 1,206,721.20, 1,810,081.80 and 786,817.20

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Solution

The fourth proportional to 1,206,721.20, 1,810,081.80 and 786,817.20 is: 1,180,225.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,206,721.20 : 1,810,081.80 = 786,817.20 : x
  2. Step 2: Convert to fraction form
    1,206,721.20/1,810,081.80 = 786,817.20/x
  3. Step 3: Cross multiply
    1,206,721.20x = 1,810,081.80 × 786,817.20
  4. Step 4: Simplify right side
    1,206,721.20x = 1,424,203,493,646.96
  5. Step 5: Solve for x
    x = 1,424,203,493,646.96/1,206,721.20
  6. Step 6: Final answer
    x = 1,180,225.80

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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.