Home / 3,119,276.70-4,678,915.05-1,906,803.90

Finding the Fourth Proportional to 3,119,276.70, 4,678,915.05 and 1,906,803.90

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Solution

The fourth proportional to 3,119,276.70, 4,678,915.05 and 1,906,803.90 is: 2,860,205.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,119,276.70 : 4,678,915.05 = 1,906,803.90 : x
  2. Step 2: Convert to fraction form
    3,119,276.70/4,678,915.05 = 1,906,803.90/x
  3. Step 3: Cross multiply
    3,119,276.70x = 4,678,915.05 × 1,906,803.90
  4. Step 4: Simplify right side
    3,119,276.70x = 8,921,773,465,108.69
  5. Step 5: Solve for x
    x = 8,921,773,465,108.69/3,119,276.70
  6. Step 6: Final answer
    x = 2,860,205.85

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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.