Home / 1,550,127.74-2,139,173.34-861,863.16

Finding the Fourth Proportional to 1,550,127.74, 2,139,173.34 and 861,863.16

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Solution

The fourth proportional to 1,550,127.74, 2,139,173.34 and 861,863.16 is: 1,189,369.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,550,127.74 : 2,139,173.34 = 861,863.16 : x
  2. Step 2: Convert to fraction form
    1,550,127.74/2,139,173.34 = 861,863.16/x
  3. Step 3: Cross multiply
    1,550,127.74x = 2,139,173.34 × 861,863.16
  4. Step 4: Simplify right side
    1,550,127.74x = 1,843,674,694,600.15
  5. Step 5: Solve for x
    x = 1,843,674,694,600.15/1,550,127.74
  6. Step 6: Final answer
    x = 1,189,369.53

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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.