Home / 3,011,887.32-4,518,385.38-990,245.40

Finding the Fourth Proportional to 3,011,887.32, 4,518,385.38 and 990,245.40

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Solution

The fourth proportional to 3,011,887.32, 4,518,385.38 and 990,245.40 is: 1,485,550.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,011,887.32 : 4,518,385.38 = 990,245.40 : x
  2. Step 2: Convert to fraction form
    3,011,887.32/4,518,385.38 = 990,245.40/x
  3. Step 3: Cross multiply
    3,011,887.32x = 4,518,385.38 × 990,245.40
  4. Step 4: Simplify right side
    3,011,887.32x = 4,474,310,337,972.25
  5. Step 5: Solve for x
    x = 4,474,310,337,972.25/3,011,887.32
  6. Step 6: Final answer
    x = 1,485,550.38

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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.