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Finding the Fourth Proportional to 1,185.48, 1,777.77 and 569.01

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Solution

The fourth proportional to 1,185.48, 1,777.77 and 569.01 is: 853.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,185.48 : 1,777.77 = 569.01 : x
  2. Step 2: Convert to fraction form
    1,185.48/1,777.77 = 569.01/x
  3. Step 3: Cross multiply
    1,185.48x = 1,777.77 × 569.01
  4. Step 4: Simplify right side
    1,185.48x = 1,011,568.91
  5. Step 5: Solve for x
    x = 1,011,568.91/1,185.48
  6. Step 6: Final answer
    x = 853.30

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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.