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Finding the Fourth Proportional to 1,034.99, 1,550.26 and 486.35

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Solution

The fourth proportional to 1,034.99, 1,550.26 and 486.35 is: 728.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,034.99 : 1,550.26 = 486.35 : x
  2. Step 2: Convert to fraction form
    1,034.99/1,550.26 = 486.35/x
  3. Step 3: Cross multiply
    1,034.99x = 1,550.26 × 486.35
  4. Step 4: Simplify right side
    1,034.99x = 753,966.52
  5. Step 5: Solve for x
    x = 753,966.52/1,034.99
  6. Step 6: Final answer
    x = 728.48

Related Problems

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Half scale
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Double scale
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Similar ratio
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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.