Home / 1,578,401.24-2,178,190.86-853,249.40

Finding the Fourth Proportional to 1,578,401.24, 2,178,190.86 and 853,249.40

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Solution

The fourth proportional to 1,578,401.24, 2,178,190.86 and 853,249.40 is: 1,177,482.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,401.24 : 2,178,190.86 = 853,249.40 : x
  2. Step 2: Convert to fraction form
    1,578,401.24/2,178,190.86 = 853,249.40/x
  3. Step 3: Cross multiply
    1,578,401.24x = 2,178,190.86 × 853,249.40
  4. Step 4: Simplify right side
    1,578,401.24x = 1,858,540,044,380.48
  5. Step 5: Solve for x
    x = 1,858,540,044,380.48/1,578,401.24
  6. Step 6: Final answer
    x = 1,177,482.63

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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.