Home / 1,241,857.20-1,863,109.80-400,429.20

Finding the Fourth Proportional to 1,241,857.20, 1,863,109.80 and 400,429.20

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Solution

The fourth proportional to 1,241,857.20, 1,863,109.80 and 400,429.20 is: 600,748.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,241,857.20 : 1,863,109.80 = 400,429.20 : x
  2. Step 2: Convert to fraction form
    1,241,857.20/1,863,109.80 = 400,429.20/x
  3. Step 3: Cross multiply
    1,241,857.20x = 1,863,109.80 × 400,429.20
  4. Step 4: Simplify right side
    1,241,857.20x = 746,043,566,726.16
  5. Step 5: Solve for x
    x = 746,043,566,726.16/1,241,857.20
  6. Step 6: Final answer
    x = 600,748.27

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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.