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Finding the Fourth Proportional to 630,351.96, 869,884.44 and 343,871.94

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Solution

The fourth proportional to 630,351.96, 869,884.44 and 343,871.94 is: 474,542.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,351.96 : 869,884.44 = 343,871.94 : x
  2. Step 2: Convert to fraction form
    630,351.96/869,884.44 = 343,871.94/x
  3. Step 3: Cross multiply
    630,351.96x = 869,884.44 × 343,871.94
  4. Step 4: Simplify right side
    630,351.96x = 299,128,849,958.61
  5. Step 5: Solve for x
    x = 299,128,849,958.61/630,351.96
  6. Step 6: Final answer
    x = 474,542.59

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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.