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Finding the Fourth Proportional to 722,548.58, 997,103.98 and 400,257.68

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Solution

The fourth proportional to 722,548.58, 997,103.98 and 400,257.68 is: 552,348.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,548.58 : 997,103.98 = 400,257.68 : x
  2. Step 2: Convert to fraction form
    722,548.58/997,103.98 = 400,257.68/x
  3. Step 3: Cross multiply
    722,548.58x = 997,103.98 × 400,257.68
  4. Step 4: Simplify right side
    722,548.58x = 399,098,525,753.57
  5. Step 5: Solve for x
    x = 399,098,525,753.57/722,548.58
  6. Step 6: Final answer
    x = 552,348.36

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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.