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Finding the Fourth Proportional to 1,026.33, 1,539.99 and 477.85

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Solution

The fourth proportional to 1,026.33, 1,539.99 and 477.85 is: 717.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,026.33 : 1,539.99 = 477.85 : x
  2. Step 2: Convert to fraction form
    1,026.33/1,539.99 = 477.85/x
  3. Step 3: Cross multiply
    1,026.33x = 1,539.99 × 477.85
  4. Step 4: Simplify right side
    1,026.33x = 735,884.22
  5. Step 5: Solve for x
    x = 735,884.22/1,026.33
  6. Step 6: Final answer
    x = 717.01

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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.