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Finding the Fourth Proportional to 2,890,657.60, 4,334,965.80 and 996,958.60

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Solution

The fourth proportional to 2,890,657.60, 4,334,965.80 and 996,958.60 is: 1,495,085.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,890,657.60 : 4,334,965.80 = 996,958.60 : x
  2. Step 2: Convert to fraction form
    2,890,657.60/4,334,965.80 = 996,958.60/x
  3. Step 3: Cross multiply
    2,890,657.60x = 4,334,965.80 × 996,958.60
  4. Step 4: Simplify right side
    2,890,657.60x = 4,321,781,435,015.88
  5. Step 5: Solve for x
    x = 4,321,781,435,015.88/2,890,657.60
  6. Step 6: Final answer
    x = 1,495,085.91

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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.