Home / 1,340,639.71-1,850,094.83-728,793.65

Finding the Fourth Proportional to 1,340,639.71, 1,850,094.83 and 728,793.65

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Solution

The fourth proportional to 1,340,639.71, 1,850,094.83 and 728,793.65 is: 1,005,741.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,340,639.71 : 1,850,094.83 = 728,793.65 : x
  2. Step 2: Convert to fraction form
    1,340,639.71/1,850,094.83 = 728,793.65/x
  3. Step 3: Cross multiply
    1,340,639.71x = 1,850,094.83 × 728,793.65
  4. Step 4: Simplify right side
    1,340,639.71x = 1,348,337,370,449.05
  5. Step 5: Solve for x
    x = 1,348,337,370,449.05/1,340,639.71
  6. Step 6: Final answer
    x = 1,005,741.78

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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.