Home / 3,141,878.40-4,709,707.20-1,543,132.80

Finding the Fourth Proportional to 3,141,878.40, 4,709,707.20 and 1,543,132.80

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Solution

The fourth proportional to 3,141,878.40, 4,709,707.20 and 1,543,132.80 is: 2,313,171.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,141,878.40 : 4,709,707.20 = 1,543,132.80 : x
  2. Step 2: Convert to fraction form
    3,141,878.40/4,709,707.20 = 1,543,132.80/x
  3. Step 3: Cross multiply
    3,141,878.40x = 4,709,707.20 × 1,543,132.80
  4. Step 4: Simplify right side
    3,141,878.40x = 7,267,703,658,716.16
  5. Step 5: Solve for x
    x = 7,267,703,658,716.16/3,141,878.40
  6. Step 6: Final answer
    x = 2,313,171.53

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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.