Home / 722,880.78-997,581.25-400,596.22

Finding the Fourth Proportional to 722,880.78, 997,581.25 and 400,596.22

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Solution

The fourth proportional to 722,880.78, 997,581.25 and 400,596.22 is: 552,825.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,880.78 : 997,581.25 = 400,596.22 : x
  2. Step 2: Convert to fraction form
    722,880.78/997,581.25 = 400,596.22/x
  3. Step 3: Cross multiply
    722,880.78x = 997,581.25 × 400,596.22
  4. Step 4: Simplify right side
    722,880.78x = 399,627,277,892.88
  5. Step 5: Solve for x
    x = 399,627,277,892.88/722,880.78
  6. Step 6: Final answer
    x = 552,825.98

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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.