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Finding the Fourth Proportional to 576,370.28, 862,783.90 and 491,339.72

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Solution

The fourth proportional to 576,370.28, 862,783.90 and 491,339.72 is: 735,499.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    576,370.28 : 862,783.90 = 491,339.72 : x
  2. Step 2: Convert to fraction form
    576,370.28/862,783.90 = 491,339.72/x
  3. Step 3: Cross multiply
    576,370.28x = 862,783.90 × 491,339.72
  4. Step 4: Simplify right side
    576,370.28x = 423,919,999,846.51
  5. Step 5: Solve for x
    x = 423,919,999,846.51/576,370.28
  6. Step 6: Final answer
    x = 735,499.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.