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Finding the Fourth Proportional to 750.40, 1,035.39 and 632.83

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Solution

The fourth proportional to 750.40, 1,035.39 and 632.83 is: 873.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    750.40 : 1,035.39 = 632.83 : x
  2. Step 2: Convert to fraction form
    750.40/1,035.39 = 632.83/x
  3. Step 3: Cross multiply
    750.40x = 1,035.39 × 632.83
  4. Step 4: Simplify right side
    750.40x = 655,225.85
  5. Step 5: Solve for x
    x = 655,225.85/750.40
  6. Step 6: Final answer
    x = 873.17

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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.