Home / 1,219,521.20-1,827,286.16-738,290.39

Finding the Fourth Proportional to 1,219,521.20, 1,827,286.16 and 738,290.39

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Solution

The fourth proportional to 1,219,521.20, 1,827,286.16 and 738,290.39 is: 1,106,227.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,219,521.20 : 1,827,286.16 = 738,290.39 : x
  2. Step 2: Convert to fraction form
    1,219,521.20/1,827,286.16 = 738,290.39/x
  3. Step 3: Cross multiply
    1,219,521.20x = 1,827,286.16 × 738,290.39
  4. Step 4: Simplify right side
    1,219,521.20x = 1,349,067,798,880.12
  5. Step 5: Solve for x
    x = 1,349,067,798,880.12/1,219,521.20
  6. Step 6: Final answer
    x = 1,106,227.43

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.