Home / 722,481.14-997,056.80-400,191.20

Finding the Fourth Proportional to 722,481.14, 997,056.80 and 400,191.20

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Solution

The fourth proportional to 722,481.14, 997,056.80 and 400,191.20 is: 552,282.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,481.14 : 997,056.80 = 400,191.20 : x
  2. Step 2: Convert to fraction form
    722,481.14/997,056.80 = 400,191.20/x
  3. Step 3: Cross multiply
    722,481.14x = 997,056.80 × 400,191.20
  4. Step 4: Simplify right side
    722,481.14x = 399,013,350,273.92
  5. Step 5: Solve for x
    x = 399,013,350,273.92/722,481.14
  6. Step 6: Final answer
    x = 552,282.03

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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.