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Finding the Fourth Proportional to 677,221.46, 934,574.73 and 371,297.12

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Solution

The fourth proportional to 677,221.46, 934,574.73 and 371,297.12 is: 512,395.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,221.46 : 934,574.73 = 371,297.12 : x
  2. Step 2: Convert to fraction form
    677,221.46/934,574.73 = 371,297.12/x
  3. Step 3: Cross multiply
    677,221.46x = 934,574.73 × 371,297.12
  4. Step 4: Simplify right side
    677,221.46x = 347,004,899,608.54
  5. Step 5: Solve for x
    x = 347,004,899,608.54/677,221.46
  6. Step 6: Final answer
    x = 512,395.02

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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.