Home / 1,442,482.25-1,980,201.57-1,238,178.47

Finding the Fourth Proportional to 1,442,482.25, 1,980,201.57 and 1,238,178.47

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Solution

The fourth proportional to 1,442,482.25, 1,980,201.57 and 1,238,178.47 is: 1,699,738.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,442,482.25 : 1,980,201.57 = 1,238,178.47 : x
  2. Step 2: Convert to fraction form
    1,442,482.25/1,980,201.57 = 1,238,178.47/x
  3. Step 3: Cross multiply
    1,442,482.25x = 1,980,201.57 × 1,238,178.47
  4. Step 4: Simplify right side
    1,442,482.25x = 2,451,842,940,333.19
  5. Step 5: Solve for x
    x = 2,451,842,940,333.19/1,442,482.25
  6. Step 6: Final answer
    x = 1,699,738.73

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.