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Finding the Fourth Proportional to 545,208.57, 752,377.55 and 303,489.45

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Solution

The fourth proportional to 545,208.57, 752,377.55 and 303,489.45 is: 418,809.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,208.57 : 752,377.55 = 303,489.45 : x
  2. Step 2: Convert to fraction form
    545,208.57/752,377.55 = 303,489.45/x
  3. Step 3: Cross multiply
    545,208.57x = 752,377.55 × 303,489.45
  4. Step 4: Simplify right side
    545,208.57x = 228,338,647,324.40
  5. Step 5: Solve for x
    x = 228,338,647,324.40/545,208.57
  6. Step 6: Final answer
    x = 418,809.72

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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.