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Finding the Fourth Proportional to 760.24, 1,048.57 and 480.52

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Solution

The fourth proportional to 760.24, 1,048.57 and 480.52 is: 662.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    760.24 : 1,048.57 = 480.52 : x
  2. Step 2: Convert to fraction form
    760.24/1,048.57 = 480.52/x
  3. Step 3: Cross multiply
    760.24x = 1,048.57 × 480.52
  4. Step 4: Simplify right side
    760.24x = 503,858.86
  5. Step 5: Solve for x
    x = 503,858.86/760.24
  6. Step 6: Final answer
    x = 662.76

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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.