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Finding the Fourth Proportional to 567, 783.77 and 473.20

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Solution

The fourth proportional to 567, 783.77 and 473.20 is: 654.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    567 : 783.77 = 473.20 : x
  2. Step 2: Convert to fraction form
    567/783.77 = 473.20/x
  3. Step 3: Cross multiply
    567x = 783.77 × 473.20
  4. Step 4: Simplify right side
    567x = 370,879.96
  5. Step 5: Solve for x
    x = 370,879.96/567
  6. Step 6: Final answer
    x = 654.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.