Home / 722,821.20-1,084,231.80-455,715.60

Finding the Fourth Proportional to 722,821.20, 1,084,231.80 and 455,715.60

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Solution

The fourth proportional to 722,821.20, 1,084,231.80 and 455,715.60 is: 683,573.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,821.20 : 1,084,231.80 = 455,715.60 : x
  2. Step 2: Convert to fraction form
    722,821.20/1,084,231.80 = 455,715.60/x
  3. Step 3: Cross multiply
    722,821.20x = 1,084,231.80 × 455,715.60
  4. Step 4: Simplify right side
    722,821.20x = 494,101,345,276.08
  5. Step 5: Solve for x
    x = 494,101,345,276.08/722,821.20
  6. Step 6: Final answer
    x = 683,573.40

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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.