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Finding the Fourth Proportional to 722,200.36, 996,628.98 and 399,924.04

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Solution

The fourth proportional to 722,200.36, 996,628.98 and 399,924.04 is: 551,891.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,200.36 : 996,628.98 = 399,924.04 : x
  2. Step 2: Convert to fraction form
    722,200.36/996,628.98 = 399,924.04/x
  3. Step 3: Cross multiply
    722,200.36x = 996,628.98 × 399,924.04
  4. Step 4: Simplify right side
    722,200.36x = 398,575,888,062.68
  5. Step 5: Solve for x
    x = 398,575,888,062.68/722,200.36
  6. Step 6: Final answer
    x = 551,891.01

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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.