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Finding the Fourth Proportional to 722,227.92, 996,662.16 and 399,931.08

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Solution

The fourth proportional to 722,227.92, 996,662.16 and 399,931.08 is: 551,898.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,227.92 : 996,662.16 = 399,931.08 : x
  2. Step 2: Convert to fraction form
    722,227.92/996,662.16 = 399,931.08/x
  3. Step 3: Cross multiply
    722,227.92x = 996,662.16 × 399,931.08
  4. Step 4: Simplify right side
    722,227.92x = 398,596,174,043.93
  5. Step 5: Solve for x
    x = 398,596,174,043.93/722,227.92
  6. Step 6: Final answer
    x = 551,898.04

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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.