Home / 3,119,311.20-4,678,966.80-1,906,838.40

Finding the Fourth Proportional to 3,119,311.20, 4,678,966.80 and 1,906,838.40

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Solution

The fourth proportional to 3,119,311.20, 4,678,966.80 and 1,906,838.40 is: 2,860,257.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119,311.20 : 4,678,966.80 = 1,906,838.40 : x
  2. Step 2: Convert to fraction form
    3,119,311.20/4,678,966.80 = 1,906,838.40/x
  3. Step 3: Cross multiply
    3,119,311.20x = 4,678,966.80 × 1,906,838.40
  4. Step 4: Simplify right side
    3,119,311.20x = 8,922,033,566,565.12
  5. Step 5: Solve for x
    x = 8,922,033,566,565.12/3,119,311.20
  6. Step 6: Final answer
    x = 2,860,257.60

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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.