Home / 1,578,914-2,178,897.46-853,759.47

Finding the Fourth Proportional to 1,578,914, 2,178,897.46 and 853,759.47

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Solution

The fourth proportional to 1,578,914, 2,178,897.46 and 853,759.47 is: 1,178,185.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,914 : 2,178,897.46 = 853,759.47 : x
  2. Step 2: Convert to fraction form
    1,578,914/2,178,897.46 = 853,759.47/x
  3. Step 3: Cross multiply
    1,578,914x = 2,178,897.46 × 853,759.47
  4. Step 4: Simplify right side
    1,578,914x = 1,860,254,340,633.95
  5. Step 5: Solve for x
    x = 1,860,254,340,633.95/1,578,914
  6. Step 6: Final answer
    x = 1,178,185.98

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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.