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Finding the Fourth Proportional to 557,894.60, 769,900.02 and 303,245.63

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Solution

The fourth proportional to 557,894.60, 769,900.02 and 303,245.63 is: 418,481.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,894.60 : 769,900.02 = 303,245.63 : x
  2. Step 2: Convert to fraction form
    557,894.60/769,900.02 = 303,245.63/x
  3. Step 3: Cross multiply
    557,894.60x = 769,900.02 × 303,245.63
  4. Step 4: Simplify right side
    557,894.60x = 233,468,816,601.91
  5. Step 5: Solve for x
    x = 233,468,816,601.91/557,894.60
  6. Step 6: Final answer
    x = 418,481.94

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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.