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Finding the Fourth Proportional to 552,598.74, 762,679.46 and 319,991.85

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Solution

The fourth proportional to 552,598.74, 762,679.46 and 319,991.85 is: 441,642.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,598.74 : 762,679.46 = 319,991.85 : x
  2. Step 2: Convert to fraction form
    552,598.74/762,679.46 = 319,991.85/x
  3. Step 3: Cross multiply
    552,598.74x = 762,679.46 × 319,991.85
  4. Step 4: Simplify right side
    552,598.74x = 244,051,212,162.38
  5. Step 5: Solve for x
    x = 244,051,212,162.38/552,598.74
  6. Step 6: Final answer
    x = 441,642.72

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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.