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Finding the Fourth Proportional to 554.70, 764.55 and 377.52

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Solution

The fourth proportional to 554.70, 764.55 and 377.52 is: 520.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    554.70 : 764.55 = 377.52 : x
  2. Step 2: Convert to fraction form
    554.70/764.55 = 377.52/x
  3. Step 3: Cross multiply
    554.70x = 764.55 × 377.52
  4. Step 4: Simplify right side
    554.70x = 288,632.92
  5. Step 5: Solve for x
    x = 288,632.92/554.70
  6. Step 6: Final answer
    x = 520.34

Related Problems

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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.