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Finding the Fourth Proportional to 744.07, 1,025.90 and 603.67

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Solution

The fourth proportional to 744.07, 1,025.90 and 603.67 is: 832.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    744.07 : 1,025.90 = 603.67 : x
  2. Step 2: Convert to fraction form
    744.07/1,025.90 = 603.67/x
  3. Step 3: Cross multiply
    744.07x = 1,025.90 × 603.67
  4. Step 4: Simplify right side
    744.07x = 619,299.92
  5. Step 5: Solve for x
    x = 619,299.92/744.07
  6. Step 6: Final answer
    x = 832.32

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1.5x scale

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.