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Finding the Fourth Proportional to 545,162.84, 752,324.76 and 303,440.21

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Solution

The fourth proportional to 545,162.84, 752,324.76 and 303,440.21 is: 418,747.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,162.84 : 752,324.76 = 303,440.21 : x
  2. Step 2: Convert to fraction form
    545,162.84/752,324.76 = 303,440.21/x
  3. Step 3: Cross multiply
    545,162.84x = 752,324.76 × 303,440.21
  4. Step 4: Simplify right side
    545,162.84x = 228,285,583,162.60
  5. Step 5: Solve for x
    x = 228,285,583,162.60/545,162.84
  6. Step 6: Final answer
    x = 418,747.51

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Half scale
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Double scale
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Similar ratio
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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.