Home / 1,578,912-2,178,894.70-853,757.47

Finding the Fourth Proportional to 1,578,912, 2,178,894.70 and 853,757.47

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Solution

The fourth proportional to 1,578,912, 2,178,894.70 and 853,757.47 is: 1,178,183.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,912 : 2,178,894.70 = 853,757.47 : x
  2. Step 2: Convert to fraction form
    1,578,912/2,178,894.70 = 853,757.47/x
  3. Step 3: Cross multiply
    1,578,912x = 2,178,894.70 × 853,757.47
  4. Step 4: Simplify right side
    1,578,912x = 1,860,247,626,468.41
  5. Step 5: Solve for x
    x = 1,860,247,626,468.41/1,578,912
  6. Step 6: Final answer
    x = 1,178,183.22

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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.