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Finding the Fourth Proportional to 545,526.52, 752,772.78 and 303,831.64

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Solution

The fourth proportional to 545,526.52, 752,772.78 and 303,831.64 is: 419,257.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,526.52 : 752,772.78 = 303,831.64 : x
  2. Step 2: Convert to fraction form
    545,526.52/752,772.78 = 303,831.64/x
  3. Step 3: Cross multiply
    545,526.52x = 752,772.78 × 303,831.64
  4. Step 4: Simplify right side
    545,526.52x = 228,716,188,294.76
  5. Step 5: Solve for x
    x = 228,716,188,294.76/545,526.52
  6. Step 6: Final answer
    x = 419,257.69

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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.