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Finding the Fourth Proportional to 853.48, 1,177.77 and 504.19

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Solution

The fourth proportional to 853.48, 1,177.77 and 504.19 is: 695.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    853.48 : 1,177.77 = 504.19 : x
  2. Step 2: Convert to fraction form
    853.48/1,177.77 = 504.19/x
  3. Step 3: Cross multiply
    853.48x = 1,177.77 × 504.19
  4. Step 4: Simplify right side
    853.48x = 593,819.86
  5. Step 5: Solve for x
    x = 593,819.86/853.48
  6. Step 6: Final answer
    x = 695.76

Related Problems

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Half scale
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Double scale
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1.5x scale

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.