Home / 722,510.80-1,084,380.60-323,765.20

Finding the Fourth Proportional to 722,510.80, 1,084,380.60 and 323,765.20

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Solution

The fourth proportional to 722,510.80, 1,084,380.60 and 323,765.20 is: 485,923.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,510.80 : 1,084,380.60 = 323,765.20 : x
  2. Step 2: Convert to fraction form
    722,510.80/1,084,380.60 = 323,765.20/x
  3. Step 3: Cross multiply
    722,510.80x = 1,084,380.60 × 323,765.20
  4. Step 4: Simplify right side
    722,510.80x = 351,084,701,835.12
  5. Step 5: Solve for x
    x = 351,084,701,835.12/722,510.80
  6. Step 6: Final answer
    x = 485,923.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.