Home / 722,669.64-997,203.48-400,299.84

Finding the Fourth Proportional to 722,669.64, 997,203.48 and 400,299.84

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Solution

The fourth proportional to 722,669.64, 997,203.48 and 400,299.84 is: 552,369.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,669.64 : 997,203.48 = 400,299.84 : x
  2. Step 2: Convert to fraction form
    722,669.64/997,203.48 = 400,299.84/x
  3. Step 3: Cross multiply
    722,669.64x = 997,203.48 × 400,299.84
  4. Step 4: Simplify right side
    722,669.64x = 399,180,393,491.44
  5. Step 5: Solve for x
    x = 399,180,393,491.44/722,669.64
  6. Step 6: Final answer
    x = 552,369.12

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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.