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Finding the Fourth Proportional to 637,814, 880,143.72 and 351,318.08

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Solution

The fourth proportional to 637,814, 880,143.72 and 351,318.08 is: 484,797.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    637,814 : 880,143.72 = 351,318.08 : x
  2. Step 2: Convert to fraction form
    637,814/880,143.72 = 351,318.08/x
  3. Step 3: Cross multiply
    637,814x = 880,143.72 × 351,318.08
  4. Step 4: Simplify right side
    637,814x = 309,210,401,834.46
  5. Step 5: Solve for x
    x = 309,210,401,834.46/637,814
  6. Step 6: Final answer
    x = 484,797.14

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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.