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Finding the Fourth Proportional to 1,203.48, 1,805.26 and 473.40

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Solution

The fourth proportional to 1,203.48, 1,805.26 and 473.40 is: 710.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203.48 : 1,805.26 = 473.40 : x
  2. Step 2: Convert to fraction form
    1,203.48/1,805.26 = 473.40/x
  3. Step 3: Cross multiply
    1,203.48x = 1,805.26 × 473.40
  4. Step 4: Simplify right side
    1,203.48x = 854,610.08
  5. Step 5: Solve for x
    x = 854,610.08/1,203.48
  6. Step 6: Final answer
    x = 710.12

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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.