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Finding the Fourth Proportional to 637,794, 880,155.72 and 351,313.20

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Solution

The fourth proportional to 637,794, 880,155.72 and 351,313.20 is: 484,812.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,794 : 880,155.72 = 351,313.20 : x
  2. Step 2: Convert to fraction form
    637,794/880,155.72 = 351,313.20/x
  3. Step 3: Cross multiply
    637,794x = 880,155.72 × 351,313.20
  4. Step 4: Simplify right side
    637,794x = 309,210,322,491.50
  5. Step 5: Solve for x
    x = 309,210,322,491.50/637,794
  6. Step 6: Final answer
    x = 484,812.22

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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.