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Finding the Fourth Proportional to 550.68, 826.65 and 435.51

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Solution

The fourth proportional to 550.68, 826.65 and 435.51 is: 653.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    550.68 : 826.65 = 435.51 : x
  2. Step 2: Convert to fraction form
    550.68/826.65 = 435.51/x
  3. Step 3: Cross multiply
    550.68x = 826.65 × 435.51
  4. Step 4: Simplify right side
    550.68x = 360,014.34
  5. Step 5: Solve for x
    x = 360,014.34/550.68
  6. Step 6: Final answer
    x = 653.76

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Double scale
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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.