Home / 2,190,997.80-3,023,276.40-1,224,007.92

Finding the Fourth Proportional to 2,190,997.80, 3,023,276.40 and 1,224,007.92

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Solution

The fourth proportional to 2,190,997.80, 3,023,276.40 and 1,224,007.92 is: 1,688,963.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,190,997.80 : 3,023,276.40 = 1,224,007.92 : x
  2. Step 2: Convert to fraction form
    2,190,997.80/3,023,276.40 = 1,224,007.92/x
  3. Step 3: Cross multiply
    2,190,997.80x = 3,023,276.40 × 1,224,007.92
  4. Step 4: Simplify right side
    2,190,997.80x = 3,700,514,257,949.09
  5. Step 5: Solve for x
    x = 3,700,514,257,949.09/2,190,997.80
  6. Step 6: Final answer
    x = 1,688,963.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.