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Finding the Fourth Proportional to 1,481.98, 2,220.54 and 507.55

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Solution

The fourth proportional to 1,481.98, 2,220.54 and 507.55 is: 760.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,481.98 : 2,220.54 = 507.55 : x
  2. Step 2: Convert to fraction form
    1,481.98/2,220.54 = 507.55/x
  3. Step 3: Cross multiply
    1,481.98x = 2,220.54 × 507.55
  4. Step 4: Simplify right side
    1,481.98x = 1,127,032.54
  5. Step 5: Solve for x
    x = 1,127,032.54/1,481.98
  6. Step 6: Final answer
    x = 760.49

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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.