Home / 1,378,384.43-2,067,706.29-405,749.35

Finding the Fourth Proportional to 1,378,384.43, 2,067,706.29 and 405,749.35

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Solution

The fourth proportional to 1,378,384.43, 2,067,706.29 and 405,749.35 is: 608,662.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,378,384.43 : 2,067,706.29 = 405,749.35 : x
  2. Step 2: Convert to fraction form
    1,378,384.43/2,067,706.29 = 405,749.35/x
  3. Step 3: Cross multiply
    1,378,384.43x = 2,067,706.29 × 405,749.35
  4. Step 4: Simplify right side
    1,378,384.43x = 838,970,483,158.41
  5. Step 5: Solve for x
    x = 838,970,483,158.41/1,378,384.43
  6. Step 6: Final answer
    x = 608,662.19

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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.