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Finding the Fourth Proportional to 750.60, 1,035.18 and 603.18

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Solution

The fourth proportional to 750.60, 1,035.18 and 603.18 is: 831.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    750.60 : 1,035.18 = 603.18 : x
  2. Step 2: Convert to fraction form
    750.60/1,035.18 = 603.18/x
  3. Step 3: Cross multiply
    750.60x = 1,035.18 × 603.18
  4. Step 4: Simplify right side
    750.60x = 624,399.87
  5. Step 5: Solve for x
    x = 624,399.87/750.60
  6. Step 6: Final answer
    x = 831.87

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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.