Home / 2,652,173.12-3,979,435.80-1,389,700.64

Finding the Fourth Proportional to 2,652,173.12, 3,979,435.80 and 1,389,700.64

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Solution

The fourth proportional to 2,652,173.12, 3,979,435.80 and 1,389,700.64 is: 2,085,167.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,652,173.12 : 3,979,435.80 = 1,389,700.64 : x
  2. Step 2: Convert to fraction form
    2,652,173.12/3,979,435.80 = 1,389,700.64/x
  3. Step 3: Cross multiply
    2,652,173.12x = 3,979,435.80 × 1,389,700.64
  4. Step 4: Simplify right side
    2,652,173.12x = 5,530,224,478,098.91
  5. Step 5: Solve for x
    x = 5,530,224,478,098.91/2,652,173.12
  6. Step 6: Final answer
    x = 2,085,167.23

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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.