Home / 1,578,913-2,178,896.08-853,758.47

Finding the Fourth Proportional to 1,578,913, 2,178,896.08 and 853,758.47

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Solution

The fourth proportional to 1,578,913, 2,178,896.08 and 853,758.47 is: 1,178,184.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,578,913 : 2,178,896.08 = 853,758.47 : x
  2. Step 2: Convert to fraction form
    1,578,913/2,178,896.08 = 853,758.47/x
  3. Step 3: Cross multiply
    1,578,913x = 2,178,896.08 × 853,758.47
  4. Step 4: Simplify right side
    1,578,913x = 1,860,250,983,549.80
  5. Step 5: Solve for x
    x = 1,860,250,983,549.80/1,578,913
  6. Step 6: Final answer
    x = 1,178,184.60

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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.