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Finding the Fourth Proportional to 750.22, 1,035.44 and 572.89

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Solution

The fourth proportional to 750.22, 1,035.44 and 572.89 is: 790.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    750.22 : 1,035.44 = 572.89 : x
  2. Step 2: Convert to fraction form
    750.22/1,035.44 = 572.89/x
  3. Step 3: Cross multiply
    750.22x = 1,035.44 × 572.89
  4. Step 4: Simplify right side
    750.22x = 593,193.22
  5. Step 5: Solve for x
    x = 593,193.22/750.22
  6. Step 6: Final answer
    x = 790.69

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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.