Home / 2,118,664.80-3,175,232.40-981,295.20

Finding the Fourth Proportional to 2,118,664.80, 3,175,232.40 and 981,295.20

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Solution

The fourth proportional to 2,118,664.80, 3,175,232.40 and 981,295.20 is: 1,470,662.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,118,664.80 : 3,175,232.40 = 981,295.20 : x
  2. Step 2: Convert to fraction form
    2,118,664.80/3,175,232.40 = 981,295.20/x
  3. Step 3: Cross multiply
    2,118,664.80x = 3,175,232.40 × 981,295.20
  4. Step 4: Simplify right side
    2,118,664.80x = 3,115,840,313,004.48
  5. Step 5: Solve for x
    x = 3,115,840,313,004.48/2,118,664.80
  6. Step 6: Final answer
    x = 1,470,662.24

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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.