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Finding the Fourth Proportional to 722,571.88, 997,146.66 and 404,619.88

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Solution

The fourth proportional to 722,571.88, 997,146.66 and 404,619.88 is: 558,374.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,571.88 : 997,146.66 = 404,619.88 : x
  2. Step 2: Convert to fraction form
    722,571.88/997,146.66 = 404,619.88/x
  3. Step 3: Cross multiply
    722,571.88x = 997,146.66 × 404,619.88
  4. Step 4: Simplify right side
    722,571.88x = 403,465,361,911.60
  5. Step 5: Solve for x
    x = 403,465,361,911.60/722,571.88
  6. Step 6: Final answer
    x = 558,374.02

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1.5x scale

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.