Home / 726,754.88-1,090,137.18-253,438.40

Finding the Fourth Proportional to 726,754.88, 1,090,137.18 and 253,438.40

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Solution

The fourth proportional to 726,754.88, 1,090,137.18 and 253,438.40 is: 380,159.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,754.88 : 1,090,137.18 = 253,438.40 : x
  2. Step 2: Convert to fraction form
    726,754.88/1,090,137.18 = 253,438.40/x
  3. Step 3: Cross multiply
    726,754.88x = 1,090,137.18 × 253,438.40
  4. Step 4: Simplify right side
    726,754.88x = 276,282,622,679.71
  5. Step 5: Solve for x
    x = 276,282,622,679.71/726,754.88
  6. Step 6: Final answer
    x = 380,159.29

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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.