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Finding the Fourth Proportional to 677,165.80, 934,468.57 and 371,231.72

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Solution

The fourth proportional to 677,165.80, 934,468.57 and 371,231.72 is: 512,288.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    677,165.80 : 934,468.57 = 371,231.72 : x
  2. Step 2: Convert to fraction form
    677,165.80/934,468.57 = 371,231.72/x
  3. Step 3: Cross multiply
    677,165.80x = 934,468.57 × 371,231.72
  4. Step 4: Simplify right side
    677,165.80x = 346,904,373,822.99
  5. Step 5: Solve for x
    x = 346,904,373,822.99/677,165.80
  6. Step 6: Final answer
    x = 512,288.68

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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.