Home / 1,340,908.66-2,011,640.10-442,405.36

Finding the Fourth Proportional to 1,340,908.66, 2,011,640.10 and 442,405.36

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Solution

The fourth proportional to 1,340,908.66, 2,011,640.10 and 442,405.36 is: 663,699.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,908.66 : 2,011,640.10 = 442,405.36 : x
  2. Step 2: Convert to fraction form
    1,340,908.66/2,011,640.10 = 442,405.36/x
  3. Step 3: Cross multiply
    1,340,908.66x = 2,011,640.10 × 442,405.36
  4. Step 4: Simplify right side
    1,340,908.66x = 889,960,362,630.94
  5. Step 5: Solve for x
    x = 889,960,362,630.94/1,340,908.66
  6. Step 6: Final answer
    x = 663,699.47

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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.