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Finding the Fourth Proportional to 557,881.39, 769,879.02 and 303,232.42

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Solution

The fourth proportional to 557,881.39, 769,879.02 and 303,232.42 is: 418,462.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,881.39 : 769,879.02 = 303,232.42 : x
  2. Step 2: Convert to fraction form
    557,881.39/769,879.02 = 303,232.42/x
  3. Step 3: Cross multiply
    557,881.39x = 769,879.02 × 303,232.42
  4. Step 4: Simplify right side
    557,881.39x = 233,452,278,341.83
  5. Step 5: Solve for x
    x = 233,452,278,341.83/557,881.39
  6. Step 6: Final answer
    x = 418,462.21

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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.