Home / 2,286,909.12-3,430,859.04-689,338.56

Finding the Fourth Proportional to 2,286,909.12, 3,430,859.04 and 689,338.56

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Solution

The fourth proportional to 2,286,909.12, 3,430,859.04 and 689,338.56 is: 1,034,157.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,286,909.12 : 3,430,859.04 = 689,338.56 : x
  2. Step 2: Convert to fraction form
    2,286,909.12/3,430,859.04 = 689,338.56/x
  3. Step 3: Cross multiply
    2,286,909.12x = 3,430,859.04 × 689,338.56
  4. Step 4: Simplify right side
    2,286,909.12x = 2,365,023,430,196.58
  5. Step 5: Solve for x
    x = 2,365,023,430,196.58/2,286,909.12
  6. Step 6: Final answer
    x = 1,034,157.16

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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.