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Finding the Fourth Proportional to 545,049.45, 752,203.62 and 303,331.32

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Solution

The fourth proportional to 545,049.45, 752,203.62 and 303,331.32 is: 418,616.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,049.45 : 752,203.62 = 303,331.32 : x
  2. Step 2: Convert to fraction form
    545,049.45/752,203.62 = 303,331.32/x
  3. Step 3: Cross multiply
    545,049.45x = 752,203.62 × 303,331.32
  4. Step 4: Simplify right side
    545,049.45x = 228,166,916,963.38
  5. Step 5: Solve for x
    x = 228,166,916,963.38/545,049.45
  6. Step 6: Final answer
    x = 418,616.91

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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.