Home / 1,578,260.16-2,177,999.10-853,105.50

Finding the Fourth Proportional to 1,578,260.16, 2,177,999.10 and 853,105.50

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Solution

The fourth proportional to 1,578,260.16, 2,177,999.10 and 853,105.50 is: 1,177,285.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,260.16 : 2,177,999.10 = 853,105.50 : x
  2. Step 2: Convert to fraction form
    1,578,260.16/2,177,999.10 = 853,105.50/x
  3. Step 3: Cross multiply
    1,578,260.16x = 2,177,999.10 × 853,105.50
  4. Step 4: Simplify right side
    1,578,260.16x = 1,858,063,011,205.05
  5. Step 5: Solve for x
    x = 1,858,063,011,205.05/1,578,260.16
  6. Step 6: Final answer
    x = 1,177,285.63

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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.