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Finding the Fourth Proportional to 1,106.00, 1,659.99 and 457.19

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Solution

The fourth proportional to 1,106.00, 1,659.99 and 457.19 is: 686.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,106.00 : 1,659.99 = 457.19 : x
  2. Step 2: Convert to fraction form
    1,106.00/1,659.99 = 457.19/x
  3. Step 3: Cross multiply
    1,106.00x = 1,659.99 × 457.19
  4. Step 4: Simplify right side
    1,106.00x = 758,939.81
  5. Step 5: Solve for x
    x = 758,939.81/1,106.00
  6. Step 6: Final answer
    x = 686.20

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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.