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Finding the Fourth Proportional to 630,206.82, 869,684.88 and 343,726.02

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Solution

The fourth proportional to 630,206.82, 869,684.88 and 343,726.02 is: 474,341.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,206.82 : 869,684.88 = 343,726.02 : x
  2. Step 2: Convert to fraction form
    630,206.82/869,684.88 = 343,726.02/x
  3. Step 3: Cross multiply
    630,206.82x = 869,684.88 × 343,726.02
  4. Step 4: Simplify right side
    630,206.82x = 298,933,322,456.58
  5. Step 5: Solve for x
    x = 298,933,322,456.58/630,206.82
  6. Step 6: Final answer
    x = 474,341.62

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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.