Home / 1,210,067.70-1,815,101.55-1,154,955.30

Finding the Fourth Proportional to 1,210,067.70, 1,815,101.55 and 1,154,955.30

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Solution

The fourth proportional to 1,210,067.70, 1,815,101.55 and 1,154,955.30 is: 1,732,432.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,067.70 : 1,815,101.55 = 1,154,955.30 : x
  2. Step 2: Convert to fraction form
    1,210,067.70/1,815,101.55 = 1,154,955.30/x
  3. Step 3: Cross multiply
    1,210,067.70x = 1,815,101.55 × 1,154,955.30
  4. Step 4: Simplify right side
    1,210,067.70x = 2,096,361,155,210.72
  5. Step 5: Solve for x
    x = 2,096,361,155,210.72/1,210,067.70
  6. Step 6: Final answer
    x = 1,732,432.95

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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.