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Finding the Fourth Proportional to 750.00, 1,036.27 and 539.76

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Solution

The fourth proportional to 750.00, 1,036.27 and 539.76 is: 745.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    750.00 : 1,036.27 = 539.76 : x
  2. Step 2: Convert to fraction form
    750.00/1,036.27 = 539.76/x
  3. Step 3: Cross multiply
    750.00x = 1,036.27 × 539.76
  4. Step 4: Simplify right side
    750.00x = 559,341.04
  5. Step 5: Solve for x
    x = 559,341.04/750.00
  6. Step 6: Final answer
    x = 745.79

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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.