Home / 726,133.20-1,090,236.60-411,205.20

Finding the Fourth Proportional to 726,133.20, 1,090,236.60 and 411,205.20

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Solution

The fourth proportional to 726,133.20, 1,090,236.60 and 411,205.20 is: 617,394.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    726,133.20 : 1,090,236.60 = 411,205.20 : x
  2. Step 2: Convert to fraction form
    726,133.20/1,090,236.60 = 411,205.20/x
  3. Step 3: Cross multiply
    726,133.20x = 1,090,236.60 × 411,205.20
  4. Step 4: Simplify right side
    726,133.20x = 448,310,959,150.32
  5. Step 5: Solve for x
    x = 448,310,959,150.32/726,133.20
  6. Step 6: Final answer
    x = 617,394.93

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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.