Home / 1,074,371.76-1,611,741.24-442,940.40

Finding the Fourth Proportional to 1,074,371.76, 1,611,741.24 and 442,940.40

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Solution

The fourth proportional to 1,074,371.76, 1,611,741.24 and 442,940.40 is: 664,486.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,074,371.76 : 1,611,741.24 = 442,940.40 : x
  2. Step 2: Convert to fraction form
    1,074,371.76/1,611,741.24 = 442,940.40/x
  3. Step 3: Cross multiply
    1,074,371.76x = 1,611,741.24 × 442,940.40
  4. Step 4: Simplify right side
    1,074,371.76x = 713,905,309,542.10
  5. Step 5: Solve for x
    x = 713,905,309,542.10/1,074,371.76
  6. Step 6: Final answer
    x = 664,486.29

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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.