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Finding the Fourth Proportional to 752.36, 1,038.13 and 437.67

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Solution

The fourth proportional to 752.36, 1,038.13 and 437.67 is: 603.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    752.36 : 1,038.13 = 437.67 : x
  2. Step 2: Convert to fraction form
    752.36/1,038.13 = 437.67/x
  3. Step 3: Cross multiply
    752.36x = 1,038.13 × 437.67
  4. Step 4: Simplify right side
    752.36x = 454,357.26
  5. Step 5: Solve for x
    x = 454,357.26/752.36
  6. Step 6: Final answer
    x = 603.91

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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.