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Finding the Fourth Proportional to 647,237.74, 970,996.74 and 247,878.58

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Solution

The fourth proportional to 647,237.74, 970,996.74 and 247,878.58 is: 371,871.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,237.74 : 970,996.74 = 247,878.58 : x
  2. Step 2: Convert to fraction form
    647,237.74/970,996.74 = 247,878.58/x
  3. Step 3: Cross multiply
    647,237.74x = 970,996.74 × 247,878.58
  4. Step 4: Simplify right side
    647,237.74x = 240,689,293,095.83
  5. Step 5: Solve for x
    x = 240,689,293,095.83/647,237.74
  6. Step 6: Final answer
    x = 371,871.54

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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.