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Finding the Fourth Proportional to 526.05, 790.65 and 435.33

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Solution

The fourth proportional to 526.05, 790.65 and 435.33 is: 654.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    526.05 : 790.65 = 435.33 : x
  2. Step 2: Convert to fraction form
    526.05/790.65 = 435.33/x
  3. Step 3: Cross multiply
    526.05x = 790.65 × 435.33
  4. Step 4: Simplify right side
    526.05x = 344,193.66
  5. Step 5: Solve for x
    x = 344,193.66/526.05
  6. Step 6: Final answer
    x = 654.30

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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.