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Finding the Fourth Proportional to 722,599.80, 997,248.96 and 400,410.96

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Solution

The fourth proportional to 722,599.80, 997,248.96 and 400,410.96 is: 552,601.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,599.80 : 997,248.96 = 400,410.96 : x
  2. Step 2: Convert to fraction form
    722,599.80/997,248.96 = 400,410.96/x
  3. Step 3: Cross multiply
    722,599.80x = 997,248.96 × 400,410.96
  4. Step 4: Simplify right side
    722,599.80x = 399,309,413,432.60
  5. Step 5: Solve for x
    x = 399,309,413,432.60/722,599.80
  6. Step 6: Final answer
    x = 552,601.06

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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.