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Finding the Fourth Proportional to 637,560.05, 879,832.77 and 351,079.43

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Solution

The fourth proportional to 637,560.05, 879,832.77 and 351,079.43 is: 484,489.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,560.05 : 879,832.77 = 351,079.43 : x
  2. Step 2: Convert to fraction form
    637,560.05/879,832.77 = 351,079.43/x
  3. Step 3: Cross multiply
    637,560.05x = 879,832.77 × 351,079.43
  4. Step 4: Simplify right side
    637,560.05x = 308,891,187,386.92
  5. Step 5: Solve for x
    x = 308,891,187,386.92/637,560.05
  6. Step 6: Final answer
    x = 484,489.56

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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.