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Finding the Fourth Proportional to 557,450.28, 769,298.04 and 302,818.68

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Solution

The fourth proportional to 557,450.28, 769,298.04 and 302,818.68 is: 417,898.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,450.28 : 769,298.04 = 302,818.68 : x
  2. Step 2: Convert to fraction form
    557,450.28/769,298.04 = 302,818.68/x
  3. Step 3: Cross multiply
    557,450.28x = 769,298.04 × 302,818.68
  4. Step 4: Simplify right side
    557,450.28x = 232,957,816,999.39
  5. Step 5: Solve for x
    x = 232,957,816,999.39/557,450.28
  6. Step 6: Final answer
    x = 417,898.82

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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.