Home / 2,686,412.20-4,032,728.70-1,622,655.40

Finding the Fourth Proportional to 2,686,412.20, 4,032,728.70 and 1,622,655.40

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Solution

The fourth proportional to 2,686,412.20, 4,032,728.70 and 1,622,655.40 is: 2,435,861.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,686,412.20 : 4,032,728.70 = 1,622,655.40 : x
  2. Step 2: Convert to fraction form
    2,686,412.20/4,032,728.70 = 1,622,655.40/x
  3. Step 3: Cross multiply
    2,686,412.20x = 4,032,728.70 × 1,622,655.40
  4. Step 4: Simplify right side
    2,686,412.20x = 6,543,729,001,789.98
  5. Step 5: Solve for x
    x = 6,543,729,001,789.98/2,686,412.20
  6. Step 6: Final answer
    x = 2,435,861.85

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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.