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Finding the Fourth Proportional to 2,662,801.60, 3,994,202.40 and 865,743.70

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Solution

The fourth proportional to 2,662,801.60, 3,994,202.40 and 865,743.70 is: 1,298,615.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,662,801.60 : 3,994,202.40 = 865,743.70 : x
  2. Step 2: Convert to fraction form
    2,662,801.60/3,994,202.40 = 865,743.70/x
  3. Step 3: Cross multiply
    2,662,801.60x = 3,994,202.40 × 865,743.70
  4. Step 4: Simplify right side
    2,662,801.60x = 3,457,955,564,324.88
  5. Step 5: Solve for x
    x = 3,457,955,564,324.88/2,662,801.60
  6. Step 6: Final answer
    x = 1,298,615.55

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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.