Home / 722,820.80-1,084,231.20-349,572.80

Finding the Fourth Proportional to 722,820.80, 1,084,231.20 and 349,572.80

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Solution

The fourth proportional to 722,820.80, 1,084,231.20 and 349,572.80 is: 524,359.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,820.80 : 1,084,231.20 = 349,572.80 : x
  2. Step 2: Convert to fraction form
    722,820.80/1,084,231.20 = 349,572.80/x
  3. Step 3: Cross multiply
    722,820.80x = 1,084,231.20 × 349,572.80
  4. Step 4: Simplify right side
    722,820.80x = 379,017,736,431.36
  5. Step 5: Solve for x
    x = 379,017,736,431.36/722,820.80
  6. Step 6: Final answer
    x = 524,359.20

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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.