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Finding the Fourth Proportional to 557,933.76, 769,953.06 and 303,284.34

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Solution

The fourth proportional to 557,933.76, 769,953.06 and 303,284.34 is: 418,534.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,933.76 : 769,953.06 = 303,284.34 : x
  2. Step 2: Convert to fraction form
    557,933.76/769,953.06 = 303,284.34/x
  3. Step 3: Cross multiply
    557,933.76x = 769,953.06 × 303,284.34
  4. Step 4: Simplify right side
    557,933.76x = 233,514,705,633.08
  5. Step 5: Solve for x
    x = 233,514,705,633.08/557,933.76
  6. Step 6: Final answer
    x = 418,534.82

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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.