Home / 1,210,031.20-1,815,046.80-1,115,552.80

Finding the Fourth Proportional to 1,210,031.20, 1,815,046.80 and 1,115,552.80

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Solution

The fourth proportional to 1,210,031.20, 1,815,046.80 and 1,115,552.80 is: 1,673,329.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,031.20 : 1,815,046.80 = 1,115,552.80 : x
  2. Step 2: Convert to fraction form
    1,210,031.20/1,815,046.80 = 1,115,552.80/x
  3. Step 3: Cross multiply
    1,210,031.20x = 1,815,046.80 × 1,115,552.80
  4. Step 4: Simplify right side
    1,210,031.20x = 2,024,780,539,871.04
  5. Step 5: Solve for x
    x = 2,024,780,539,871.04/1,210,031.20
  6. Step 6: Final answer
    x = 1,673,329.20

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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.