Home / 557,789.22-769,755.06-303,140.40

Finding the Fourth Proportional to 557,789.22, 769,755.06 and 303,140.40

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Solution

The fourth proportional to 557,789.22, 769,755.06 and 303,140.40 is: 418,336.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,789.22 : 769,755.06 = 303,140.40 : x
  2. Step 2: Convert to fraction form
    557,789.22/769,755.06 = 303,140.40/x
  3. Step 3: Cross multiply
    557,789.22x = 769,755.06 × 303,140.40
  4. Step 4: Simplify right side
    557,789.22x = 233,343,856,790.42
  5. Step 5: Solve for x
    x = 233,343,856,790.42/557,789.22
  6. Step 6: Final answer
    x = 418,336.98

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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.