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Finding the Fourth Proportional to 764.04, 1,054.37 and 414.73

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Solution

The fourth proportional to 764.04, 1,054.37 and 414.73 is: 572.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    764.04 : 1,054.37 = 414.73 : x
  2. Step 2: Convert to fraction form
    764.04/1,054.37 = 414.73/x
  3. Step 3: Cross multiply
    764.04x = 1,054.37 × 414.73
  4. Step 4: Simplify right side
    764.04x = 437,281.22
  5. Step 5: Solve for x
    x = 437,281.22/764.04
  6. Step 6: Final answer
    x = 572.32

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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.