Home / 2,640,292.96-3,959,805.12-1,218,984.16

Finding the Fourth Proportional to 2,640,292.96, 3,959,805.12 and 1,218,984.16

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Solution

The fourth proportional to 2,640,292.96, 3,959,805.12 and 1,218,984.16 is: 1,828,183.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,640,292.96 : 3,959,805.12 = 1,218,984.16 : x
  2. Step 2: Convert to fraction form
    2,640,292.96/3,959,805.12 = 1,218,984.16/x
  3. Step 3: Cross multiply
    2,640,292.96x = 3,959,805.12 × 1,218,984.16
  4. Step 4: Simplify right side
    2,640,292.96x = 4,826,939,717,966.90
  5. Step 5: Solve for x
    x = 4,826,939,717,966.90/2,640,292.96
  6. Step 6: Final answer
    x = 1,828,183.38

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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.