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Finding the Fourth Proportional to 555,612.78, 832,847.10 and 218,516.76

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Solution

The fourth proportional to 555,612.78, 832,847.10 and 218,516.76 is: 327,550.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,612.78 : 832,847.10 = 218,516.76 : x
  2. Step 2: Convert to fraction form
    555,612.78/832,847.10 = 218,516.76/x
  3. Step 3: Cross multiply
    555,612.78x = 832,847.10 × 218,516.76
  4. Step 4: Simplify right side
    555,612.78x = 181,991,049,867.40
  5. Step 5: Solve for x
    x = 181,991,049,867.40/555,612.78
  6. Step 6: Final answer
    x = 327,550.15

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.