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Finding the Fourth Proportional to 557,678.19, 769,600.77 and 303,029.37

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Solution

The fourth proportional to 557,678.19, 769,600.77 and 303,029.37 is: 418,183.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,678.19 : 769,600.77 = 303,029.37 : x
  2. Step 2: Convert to fraction form
    557,678.19/769,600.77 = 303,029.37/x
  3. Step 3: Cross multiply
    557,678.19x = 769,600.77 × 303,029.37
  4. Step 4: Simplify right side
    557,678.19x = 233,211,636,484.62
  5. Step 5: Solve for x
    x = 233,211,636,484.62/557,678.19
  6. Step 6: Final answer
    x = 418,183.18

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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.