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Finding the Fourth Proportional to 722,097.13, 996,525.17 and 399,807.22

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Solution

The fourth proportional to 722,097.13, 996,525.17 and 399,807.22 is: 551,751.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,097.13 : 996,525.17 = 399,807.22 : x
  2. Step 2: Convert to fraction form
    722,097.13/996,525.17 = 399,807.22/x
  3. Step 3: Cross multiply
    722,097.13x = 996,525.17 × 399,807.22
  4. Step 4: Simplify right side
    722,097.13x = 398,417,957,877.73
  5. Step 5: Solve for x
    x = 398,417,957,877.73/722,097.13
  6. Step 6: Final answer
    x = 551,751.20

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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.