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Finding the Fourth Proportional to 651.75, 899.42 and 444.75

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Solution

The fourth proportional to 651.75, 899.42 and 444.75 is: 613.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.75 : 899.42 = 444.75 : x
  2. Step 2: Convert to fraction form
    651.75/899.42 = 444.75/x
  3. Step 3: Cross multiply
    651.75x = 899.42 × 444.75
  4. Step 4: Simplify right side
    651.75x = 400,014.82
  5. Step 5: Solve for x
    x = 400,014.82/651.75
  6. Step 6: Final answer
    x = 613.76

Related Problems

Find fourth proportional to 325.88, 449.71 and 222.38
Half scale
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Double scale
Find fourth proportional to 652.75, 900.80 and 445.75
Similar ratio
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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.