Home / 1,278,248.78-1,915,916.34-798,698

Finding the Fourth Proportional to 1,278,248.78, 1,915,916.34 and 798,698

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Solution

The fourth proportional to 1,278,248.78, 1,915,916.34 and 798,698 is: 1,197,136.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,278,248.78 : 1,915,916.34 = 798,698 : x
  2. Step 2: Convert to fraction form
    1,278,248.78/1,915,916.34 = 798,698/x
  3. Step 3: Cross multiply
    1,278,248.78x = 1,915,916.34 × 798,698
  4. Step 4: Simplify right side
    1,278,248.78x = 1,530,238,548,925.32
  5. Step 5: Solve for x
    x = 1,530,238,548,925.32/1,278,248.78
  6. Step 6: Final answer
    x = 1,197,136.72

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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.