Home / 3,081,985.20-4,622,977.80-1,399,088.70

Finding the Fourth Proportional to 3,081,985.20, 4,622,977.80 and 1,399,088.70

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Solution

The fourth proportional to 3,081,985.20, 4,622,977.80 and 1,399,088.70 is: 2,098,633.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,081,985.20 : 4,622,977.80 = 1,399,088.70 : x
  2. Step 2: Convert to fraction form
    3,081,985.20/4,622,977.80 = 1,399,088.70/x
  3. Step 3: Cross multiply
    3,081,985.20x = 4,622,977.80 × 1,399,088.70
  4. Step 4: Simplify right side
    3,081,985.20x = 6,467,956,000,330.86
  5. Step 5: Solve for x
    x = 6,467,956,000,330.86/3,081,985.20
  6. Step 6: Final answer
    x = 2,098,633.05

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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.