Home / 1,340,355.43-1,849,709.21-728,508

Finding the Fourth Proportional to 1,340,355.43, 1,849,709.21 and 728,508

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Solution

The fourth proportional to 1,340,355.43, 1,849,709.21 and 728,508 is: 1,005,351.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,355.43 : 1,849,709.21 = 728,508 : x
  2. Step 2: Convert to fraction form
    1,340,355.43/1,849,709.21 = 728,508/x
  3. Step 3: Cross multiply
    1,340,355.43x = 1,849,709.21 × 728,508
  4. Step 4: Simplify right side
    1,340,355.43x = 1,347,527,957,158.68
  5. Step 5: Solve for x
    x = 1,347,527,957,158.68/1,340,355.43
  6. Step 6: Final answer
    x = 1,005,351.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.