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Finding the Fourth Proportional to 760.26, 1,049.15 and 410.94

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Solution

The fourth proportional to 760.26, 1,049.15 and 410.94 is: 567.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    760.26 : 1,049.15 = 410.94 : x
  2. Step 2: Convert to fraction form
    760.26/1,049.15 = 410.94/x
  3. Step 3: Cross multiply
    760.26x = 1,049.15 × 410.94
  4. Step 4: Simplify right side
    760.26x = 431,140.52
  5. Step 5: Solve for x
    x = 431,140.52/760.26
  6. Step 6: Final answer
    x = 567.10

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Double scale
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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.