Home / 1,187,448.26-1,781,620.72-714,465.78

Finding the Fourth Proportional to 1,187,448.26, 1,781,620.72 and 714,465.78

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Solution

The fourth proportional to 1,187,448.26, 1,781,620.72 and 714,465.78 is: 1,071,968.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,448.26 : 1,781,620.72 = 714,465.78 : x
  2. Step 2: Convert to fraction form
    1,187,448.26/1,781,620.72 = 714,465.78/x
  3. Step 3: Cross multiply
    1,187,448.26x = 1,781,620.72 × 714,465.78
  4. Step 4: Simplify right side
    1,187,448.26x = 1,272,907,037,378.96
  5. Step 5: Solve for x
    x = 1,272,907,037,378.96/1,187,448.26
  6. Step 6: Final answer
    x = 1,071,968.42

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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.