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Finding the Fourth Proportional to 630,466.50, 870,046.62 and 343,992.62

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Solution

The fourth proportional to 630,466.50, 870,046.62 and 343,992.62 is: 474,711.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    630,466.50 : 870,046.62 = 343,992.62 : x
  2. Step 2: Convert to fraction form
    630,466.50/870,046.62 = 343,992.62/x
  3. Step 3: Cross multiply
    630,466.50x = 870,046.62 × 343,992.62
  4. Step 4: Simplify right side
    630,466.50x = 299,289,616,335.94
  5. Step 5: Solve for x
    x = 299,289,616,335.94/630,466.50
  6. Step 6: Final answer
    x = 474,711.37

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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.