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Finding the Fourth Proportional to 647,166.85, 970,779.43 and 247,704.01

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Solution

The fourth proportional to 647,166.85, 970,779.43 and 247,704.01 is: 371,567.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,166.85 : 970,779.43 = 247,704.01 : x
  2. Step 2: Convert to fraction form
    647,166.85/970,779.43 = 247,704.01/x
  3. Step 3: Cross multiply
    647,166.85x = 970,779.43 × 247,704.01
  4. Step 4: Simplify right side
    647,166.85x = 240,465,955,519.20
  5. Step 5: Solve for x
    x = 240,465,955,519.20/647,166.85
  6. Step 6: Final answer
    x = 371,567.17

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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.