Home / 1,578,971.52-2,178,993.68-871,755.92

Finding the Fourth Proportional to 1,578,971.52, 2,178,993.68 and 871,755.92

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Solution

The fourth proportional to 1,578,971.52, 2,178,993.68 and 871,755.92 is: 1,203,030.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,971.52 : 2,178,993.68 = 871,755.92 : x
  2. Step 2: Convert to fraction form
    1,578,971.52/2,178,993.68 = 871,755.92/x
  3. Step 3: Cross multiply
    1,578,971.52x = 2,178,993.68 × 871,755.92
  4. Step 4: Simplify right side
    1,578,971.52x = 1,899,550,640,182.59
  5. Step 5: Solve for x
    x = 1,899,550,640,182.59/1,578,971.52
  6. Step 6: Final answer
    x = 1,203,030.34

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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.