Home / 722,942.19-997,660.22-400,700.72

Finding the Fourth Proportional to 722,942.19, 997,660.22 and 400,700.72

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Solution

The fourth proportional to 722,942.19, 997,660.22 and 400,700.72 is: 552,966.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    722,942.19 : 997,660.22 = 400,700.72 : x
  2. Step 2: Convert to fraction form
    722,942.19/997,660.22 = 400,700.72/x
  3. Step 3: Cross multiply
    722,942.19x = 997,660.22 × 400,700.72
  4. Step 4: Simplify right side
    722,942.19x = 399,763,168,469.36
  5. Step 5: Solve for x
    x = 399,763,168,469.36/722,942.19
  6. Step 6: Final answer
    x = 552,966.99

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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.