Home / 1,915,471.39-2,871,859.85-889,712.66

Finding the Fourth Proportional to 1,915,471.39, 2,871,859.85 and 889,712.66

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Solution

The fourth proportional to 1,915,471.39, 2,871,859.85 and 889,712.66 is: 1,333,943.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,915,471.39 : 2,871,859.85 = 889,712.66 : x
  2. Step 2: Convert to fraction form
    1,915,471.39/2,871,859.85 = 889,712.66/x
  3. Step 3: Cross multiply
    1,915,471.39x = 2,871,859.85 × 889,712.66
  4. Step 4: Simplify right side
    1,915,471.39x = 2,555,130,066,290.70
  5. Step 5: Solve for x
    x = 2,555,130,066,290.70/1,915,471.39
  6. Step 6: Final answer
    x = 1,333,943.22

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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.