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Finding the Fourth Proportional to 578,531.81, 798,351.85 and 316,882.97

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Solution

The fourth proportional to 578,531.81, 798,351.85 and 316,882.97 is: 437,286.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    578,531.81 : 798,351.85 = 316,882.97 : x
  2. Step 2: Convert to fraction form
    578,531.81/798,351.85 = 316,882.97/x
  3. Step 3: Cross multiply
    578,531.81x = 798,351.85 × 316,882.97
  4. Step 4: Simplify right side
    578,531.81x = 252,984,099,756.82
  5. Step 5: Solve for x
    x = 252,984,099,756.82/578,531.81
  6. Step 6: Final answer
    x = 437,286.41

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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.