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Finding the Fourth Proportional to 511,546.76, 705,710.58 and 487,829.96

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Solution

The fourth proportional to 511,546.76, 705,710.58 and 487,829.96 is: 672,991.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,546.76 : 705,710.58 = 487,829.96 : x
  2. Step 2: Convert to fraction form
    511,546.76/705,710.58 = 487,829.96/x
  3. Step 3: Cross multiply
    511,546.76x = 705,710.58 × 487,829.96
  4. Step 4: Simplify right side
    511,546.76x = 344,266,764,012.98
  5. Step 5: Solve for x
    x = 344,266,764,012.98/511,546.76
  6. Step 6: Final answer
    x = 672,991.78

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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.