Home / 874,493.82-1,311,292.40-400,767.75

Finding the Fourth Proportional to 874,493.82, 1,311,292.40 and 400,767.75

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Solution

The fourth proportional to 874,493.82, 1,311,292.40 and 400,767.75 is: 600,946.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,493.82 : 1,311,292.40 = 400,767.75 : x
  2. Step 2: Convert to fraction form
    874,493.82/1,311,292.40 = 400,767.75/x
  3. Step 3: Cross multiply
    874,493.82x = 1,311,292.40 × 400,767.75
  4. Step 4: Simplify right side
    874,493.82x = 525,523,702,736.26
  5. Step 5: Solve for x
    x = 525,523,702,736.26/874,493.82
  6. Step 6: Final answer
    x = 600,946.16

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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.