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Finding the Fourth Proportional to 630,006.45, 869,426.83 and 343,542.25

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Solution

The fourth proportional to 630,006.45, 869,426.83 and 343,542.25 is: 474,098.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,006.45 : 869,426.83 = 343,542.25 : x
  2. Step 2: Convert to fraction form
    630,006.45/869,426.83 = 343,542.25/x
  3. Step 3: Cross multiply
    630,006.45x = 869,426.83 × 343,542.25
  4. Step 4: Simplify right side
    630,006.45x = 298,684,849,388.57
  5. Step 5: Solve for x
    x = 298,684,849,388.57/630,006.45
  6. Step 6: Final answer
    x = 474,098.08

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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.