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Finding the Fourth Proportional to 630,363.01, 869,903 and 343,889.10

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Solution

The fourth proportional to 630,363.01, 869,903 and 343,889.10 is: 474,568.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,363.01 : 869,903 = 343,889.10 : x
  2. Step 2: Convert to fraction form
    630,363.01/869,903 = 343,889.10/x
  3. Step 3: Cross multiply
    630,363.01x = 869,903 × 343,889.10
  4. Step 4: Simplify right side
    630,363.01x = 299,150,159,757.30
  5. Step 5: Solve for x
    x = 299,150,159,757.30/630,363.01
  6. Step 6: Final answer
    x = 474,568.07

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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.