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Finding the Fourth Proportional to 722,852.81, 997,542.82 and 400,568.29

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Solution

The fourth proportional to 722,852.81, 997,542.82 and 400,568.29 is: 552,787.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,852.81 : 997,542.82 = 400,568.29 : x
  2. Step 2: Convert to fraction form
    722,852.81/997,542.82 = 400,568.29/x
  3. Step 3: Cross multiply
    722,852.81x = 997,542.82 × 400,568.29
  4. Step 4: Simplify right side
    722,852.81x = 399,584,021,609.18
  5. Step 5: Solve for x
    x = 399,584,021,609.18/722,852.81
  6. Step 6: Final answer
    x = 552,787.53

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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.