Home / 760.24-1,142.50-452.15

Finding the Fourth Proportional to 760.24, 1,142.50 and 452.15

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Solution

The fourth proportional to 760.24, 1,142.50 and 452.15 is: 679.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    760.24 : 1,142.50 = 452.15 : x
  2. Step 2: Convert to fraction form
    760.24/1,142.50 = 452.15/x
  3. Step 3: Cross multiply
    760.24x = 1,142.50 × 452.15
  4. Step 4: Simplify right side
    760.24x = 516,573.40
  5. Step 5: Solve for x
    x = 516,573.40/760.24
  6. Step 6: Final answer
    x = 679.49

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.