Home / 2,909,609.32-4,015,385.32-1,620,449.50

Finding the Fourth Proportional to 2,909,609.32, 4,015,385.32 and 1,620,449.50

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Solution

The fourth proportional to 2,909,609.32, 4,015,385.32 and 1,620,449.50 is: 2,236,289.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,909,609.32 : 4,015,385.32 = 1,620,449.50 : x
  2. Step 2: Convert to fraction form
    2,909,609.32/4,015,385.32 = 1,620,449.50/x
  3. Step 3: Cross multiply
    2,909,609.32x = 4,015,385.32 × 1,620,449.50
  4. Step 4: Simplify right side
    2,909,609.32x = 6,506,729,134,101.34
  5. Step 5: Solve for x
    x = 6,506,729,134,101.34/2,909,609.32
  6. Step 6: Final answer
    x = 2,236,289.62

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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.