Home / 1,640,796.40-2,461,194.60-442,718.72

Finding the Fourth Proportional to 1,640,796.40, 2,461,194.60 and 442,718.72

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Solution

The fourth proportional to 1,640,796.40, 2,461,194.60 and 442,718.72 is: 664,078.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,640,796.40 : 2,461,194.60 = 442,718.72 : x
  2. Step 2: Convert to fraction form
    1,640,796.40/2,461,194.60 = 442,718.72/x
  3. Step 3: Cross multiply
    1,640,796.40x = 2,461,194.60 × 442,718.72
  4. Step 4: Simplify right side
    1,640,796.40x = 1,089,616,922,982.91
  5. Step 5: Solve for x
    x = 1,089,616,922,982.91/1,640,796.40
  6. Step 6: Final answer
    x = 664,078.08

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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.