Home / 1,298,455.95-1,947,683.93-1,279,793.55

Finding the Fourth Proportional to 1,298,455.95, 1,947,683.93 and 1,279,793.55

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Solution

The fourth proportional to 1,298,455.95, 1,947,683.93 and 1,279,793.55 is: 1,919,690.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,298,455.95 : 1,947,683.93 = 1,279,793.55 : x
  2. Step 2: Convert to fraction form
    1,298,455.95/1,947,683.93 = 1,279,793.55/x
  3. Step 3: Cross multiply
    1,298,455.95x = 1,947,683.93 × 1,279,793.55
  4. Step 4: Simplify right side
    1,298,455.95x = 2,492,633,324,653.68
  5. Step 5: Solve for x
    x = 2,492,633,324,653.68/1,298,455.95
  6. Step 6: Final answer
    x = 1,919,690.33

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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.