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Finding the Fourth Proportional to 548,393.60, 756,768.93 and 303,387.41

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Solution

The fourth proportional to 548,393.60, 756,768.93 and 303,387.41 is: 418,666.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,393.60 : 756,768.93 = 303,387.41 : x
  2. Step 2: Convert to fraction form
    548,393.60/756,768.93 = 303,387.41/x
  3. Step 3: Cross multiply
    548,393.60x = 756,768.93 × 303,387.41
  4. Step 4: Simplify right side
    548,393.60x = 229,594,161,857.33
  5. Step 5: Solve for x
    x = 229,594,161,857.33/548,393.60
  6. Step 6: Final answer
    x = 418,666.75

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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.