Home / 2,103,986.40-3,155,979.60-684,088.80

Finding the Fourth Proportional to 2,103,986.40, 3,155,979.60 and 684,088.80

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Solution

The fourth proportional to 2,103,986.40, 3,155,979.60 and 684,088.80 is: 1,026,133.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,103,986.40 : 3,155,979.60 = 684,088.80 : x
  2. Step 2: Convert to fraction form
    2,103,986.40/3,155,979.60 = 684,088.80/x
  3. Step 3: Cross multiply
    2,103,986.40x = 3,155,979.60 × 684,088.80
  4. Step 4: Simplify right side
    2,103,986.40x = 2,158,970,297,388.48
  5. Step 5: Solve for x
    x = 2,158,970,297,388.48/2,103,986.40
  6. Step 6: Final answer
    x = 1,026,133.20

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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.