Home / 1,615,623.20-2,422,851.60-816,639.20

Finding the Fourth Proportional to 1,615,623.20, 2,422,851.60 and 816,639.20

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Solution

The fourth proportional to 1,615,623.20, 2,422,851.60 and 816,639.20 is: 1,224,664.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,623.20 : 2,422,851.60 = 816,639.20 : x
  2. Step 2: Convert to fraction form
    1,615,623.20/2,422,851.60 = 816,639.20/x
  3. Step 3: Cross multiply
    1,615,623.20x = 2,422,851.60 × 816,639.20
  4. Step 4: Simplify right side
    1,615,623.20x = 1,978,595,592,342.72
  5. Step 5: Solve for x
    x = 1,978,595,592,342.72/1,615,623.20
  6. Step 6: Final answer
    x = 1,224,664.01

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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.