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Finding the Fourth Proportional to 637,163.28, 879,278.63 and 350,677.22

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Solution

The fourth proportional to 637,163.28, 879,278.63 and 350,677.22 is: 483,930.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,163.28 : 879,278.63 = 350,677.22 : x
  2. Step 2: Convert to fraction form
    637,163.28/879,278.63 = 350,677.22/x
  3. Step 3: Cross multiply
    637,163.28x = 879,278.63 × 350,677.22
  4. Step 4: Simplify right side
    637,163.28x = 308,342,979,424.03
  5. Step 5: Solve for x
    x = 308,342,979,424.03/637,163.28
  6. Step 6: Final answer
    x = 483,930.87

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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.