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Finding the Fourth Proportional to 760.34, 1,049.22 and 465.54

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Solution

The fourth proportional to 760.34, 1,049.22 and 465.54 is: 642.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    760.34 : 1,049.22 = 465.54 : x
  2. Step 2: Convert to fraction form
    760.34/1,049.22 = 465.54/x
  3. Step 3: Cross multiply
    760.34x = 1,049.22 × 465.54
  4. Step 4: Simplify right side
    760.34x = 488,453.88
  5. Step 5: Solve for x
    x = 488,453.88/760.34
  6. Step 6: Final answer
    x = 642.42

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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.