Home / 2,078,409.20-3,117,613.80-1,277,092.40

Finding the Fourth Proportional to 2,078,409.20, 3,117,613.80 and 1,277,092.40

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Solution

The fourth proportional to 2,078,409.20, 3,117,613.80 and 1,277,092.40 is: 1,915,638.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,078,409.20 : 3,117,613.80 = 1,277,092.40 : x
  2. Step 2: Convert to fraction form
    2,078,409.20/3,117,613.80 = 1,277,092.40/x
  3. Step 3: Cross multiply
    2,078,409.20x = 3,117,613.80 × 1,277,092.40
  4. Step 4: Simplify right side
    2,078,409.20x = 3,981,480,890,115.12
  5. Step 5: Solve for x
    x = 3,981,480,890,115.12/2,078,409.20
  6. Step 6: Final answer
    x = 1,915,638.60

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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.