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Finding the Fourth Proportional to 651,780.30, 899,549.52 and 361,456.44

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Solution

The fourth proportional to 651,780.30, 899,549.52 and 361,456.44 is: 498,861.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,780.30 : 899,549.52 = 361,456.44 : x
  2. Step 2: Convert to fraction form
    651,780.30/899,549.52 = 361,456.44/x
  3. Step 3: Cross multiply
    651,780.30x = 899,549.52 × 361,456.44
  4. Step 4: Simplify right side
    651,780.30x = 325,147,967,102.91
  5. Step 5: Solve for x
    x = 325,147,967,102.91/651,780.30
  6. Step 6: Final answer
    x = 498,861.30

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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.