Home / 722,584.80-997,228.26-400,395.96

Finding the Fourth Proportional to 722,584.80, 997,228.26 and 400,395.96

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Solution

The fourth proportional to 722,584.80, 997,228.26 and 400,395.96 is: 552,580.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,584.80 : 997,228.26 = 400,395.96 : x
  2. Step 2: Convert to fraction form
    722,584.80/997,228.26 = 400,395.96/x
  3. Step 3: Cross multiply
    722,584.80x = 997,228.26 × 400,395.96
  4. Step 4: Simplify right side
    722,584.80x = 399,286,166,501.83
  5. Step 5: Solve for x
    x = 399,286,166,501.83/722,584.80
  6. Step 6: Final answer
    x = 552,580.36

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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.