Home / 2,078,841.78-3,118,262.49-782,237.79

Finding the Fourth Proportional to 2,078,841.78, 3,118,262.49 and 782,237.79

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Solution

The fourth proportional to 2,078,841.78, 3,118,262.49 and 782,237.79 is: 1,173,356.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,841.78 : 3,118,262.49 = 782,237.79 : x
  2. Step 2: Convert to fraction form
    2,078,841.78/3,118,262.49 = 782,237.79/x
  3. Step 3: Cross multiply
    2,078,841.78x = 3,118,262.49 × 782,237.79
  4. Step 4: Simplify right side
    2,078,841.78x = 2,439,222,758,817.50
  5. Step 5: Solve for x
    x = 2,439,222,758,817.50/2,078,841.78
  6. Step 6: Final answer
    x = 1,173,356.62

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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.