Home / 722,895.90-997,602.21-400,611.30

Finding the Fourth Proportional to 722,895.90, 997,602.21 and 400,611.30

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Solution

The fourth proportional to 722,895.90, 997,602.21 and 400,611.30 is: 552,846.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,895.90 : 997,602.21 = 400,611.30 : x
  2. Step 2: Convert to fraction form
    722,895.90/997,602.21 = 400,611.30/x
  3. Step 3: Cross multiply
    722,895.90x = 997,602.21 × 400,611.30
  4. Step 4: Simplify right side
    722,895.90x = 399,650,718,230.97
  5. Step 5: Solve for x
    x = 399,650,718,230.97/722,895.90
  6. Step 6: Final answer
    x = 552,846.85

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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.