Home / 3,132,313.20-4,689,138.60-1,869,490.80

Finding the Fourth Proportional to 3,132,313.20, 4,689,138.60 and 1,869,490.80

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Solution

The fourth proportional to 3,132,313.20, 4,689,138.60 and 1,869,490.80 is: 2,798,666.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,132,313.20 : 4,689,138.60 = 1,869,490.80 : x
  2. Step 2: Convert to fraction form
    3,132,313.20/4,689,138.60 = 1,869,490.80/x
  3. Step 3: Cross multiply
    3,132,313.20x = 4,689,138.60 × 1,869,490.80
  4. Step 4: Simplify right side
    3,132,313.20x = 8,766,301,472,624.88
  5. Step 5: Solve for x
    x = 8,766,301,472,624.88/3,132,313.20
  6. Step 6: Final answer
    x = 2,798,666.96

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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.