Home / 1,287,412.80-1,932,390.39-966,448.68

Finding the Fourth Proportional to 1,287,412.80, 1,932,390.39 and 966,448.68

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Solution

The fourth proportional to 1,287,412.80, 1,932,390.39 and 966,448.68 is: 1,450,627.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,412.80 : 1,932,390.39 = 966,448.68 : x
  2. Step 2: Convert to fraction form
    1,287,412.80/1,932,390.39 = 966,448.68/x
  3. Step 3: Cross multiply
    1,287,412.80x = 1,932,390.39 × 966,448.68
  4. Step 4: Simplify right side
    1,287,412.80x = 1,867,556,141,660.19
  5. Step 5: Solve for x
    x = 1,867,556,141,660.19/1,287,412.80
  6. Step 6: Final answer
    x = 1,450,627.29

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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.