Home / 1,287,190.56-1,776,335.22-714,284.04

Finding the Fourth Proportional to 1,287,190.56, 1,776,335.22 and 714,284.04

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Solution

The fourth proportional to 1,287,190.56, 1,776,335.22 and 714,284.04 is: 985,718.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,287,190.56 : 1,776,335.22 = 714,284.04 : x
  2. Step 2: Convert to fraction form
    1,287,190.56/1,776,335.22 = 714,284.04/x
  3. Step 3: Cross multiply
    1,287,190.56x = 1,776,335.22 × 714,284.04
  4. Step 4: Simplify right side
    1,287,190.56x = 1,268,807,897,335.89
  5. Step 5: Solve for x
    x = 1,268,807,897,335.89/1,287,190.56
  6. Step 6: Final answer
    x = 985,718.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.