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Finding the Fourth Proportional to 1,041.91, 1,562.97 and 486.50

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Solution

The fourth proportional to 1,041.91, 1,562.97 and 486.50 is: 729.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,041.91 : 1,562.97 = 486.50 : x
  2. Step 2: Convert to fraction form
    1,041.91/1,562.97 = 486.50/x
  3. Step 3: Cross multiply
    1,041.91x = 1,562.97 × 486.50
  4. Step 4: Simplify right side
    1,041.91x = 760,384.91
  5. Step 5: Solve for x
    x = 760,384.91/1,041.91
  6. Step 6: Final answer
    x = 729.80

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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.