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Finding the Fourth Proportional to 760.97, 1,050.14 and 411.66

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Solution

The fourth proportional to 760.97, 1,050.14 and 411.66 is: 568.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    760.97 : 1,050.14 = 411.66 : x
  2. Step 2: Convert to fraction form
    760.97/1,050.14 = 411.66/x
  3. Step 3: Cross multiply
    760.97x = 1,050.14 × 411.66
  4. Step 4: Simplify right side
    760.97x = 432,300.63
  5. Step 5: Solve for x
    x = 432,300.63/760.97
  6. Step 6: Final answer
    x = 568.09

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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.