Home / 3,120,438.30-4,680,657.45-1,323,015.90

Finding the Fourth Proportional to 3,120,438.30, 4,680,657.45 and 1,323,015.90

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Solution

The fourth proportional to 3,120,438.30, 4,680,657.45 and 1,323,015.90 is: 1,984,523.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,120,438.30 : 4,680,657.45 = 1,323,015.90 : x
  2. Step 2: Convert to fraction form
    3,120,438.30/4,680,657.45 = 1,323,015.90/x
  3. Step 3: Cross multiply
    3,120,438.30x = 4,680,657.45 × 1,323,015.90
  4. Step 4: Simplify right side
    3,120,438.30x = 6,192,584,228,803.46
  5. Step 5: Solve for x
    x = 6,192,584,228,803.46/3,120,438.30
  6. Step 6: Final answer
    x = 1,984,523.85

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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.