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Finding the Fourth Proportional to 803,651.86, 1,108,958.78 and 481,353.68

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Solution

The fourth proportional to 803,651.86, 1,108,958.78 and 481,353.68 is: 664,219.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,651.86 : 1,108,958.78 = 481,353.68 : x
  2. Step 2: Convert to fraction form
    803,651.86/1,108,958.78 = 481,353.68/x
  3. Step 3: Cross multiply
    803,651.86x = 1,108,958.78 × 481,353.68
  4. Step 4: Simplify right side
    803,651.86x = 533,801,389,721.31
  5. Step 5: Solve for x
    x = 533,801,389,721.31/803,651.86
  6. Step 6: Final answer
    x = 664,219.69

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Double scale
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1.5x scale

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.