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Finding the Fourth Proportional to 2,650,946.40, 3,658,305.60 and 1,443,722.40

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Solution

The fourth proportional to 2,650,946.40, 3,658,305.60 and 1,443,722.40 is: 1,992,336.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,650,946.40 : 3,658,305.60 = 1,443,722.40 : x
  2. Step 2: Convert to fraction form
    2,650,946.40/3,658,305.60 = 1,443,722.40/x
  3. Step 3: Cross multiply
    2,650,946.40x = 3,658,305.60 × 1,443,722.40
  4. Step 4: Simplify right side
    2,650,946.40x = 5,281,577,740,765.44
  5. Step 5: Solve for x
    x = 5,281,577,740,765.44/2,650,946.40
  6. Step 6: Final answer
    x = 1,992,336.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.