Home / 2,807,729.70-4,214,359.35-1,389,387.30

Finding the Fourth Proportional to 2,807,729.70, 4,214,359.35 and 1,389,387.30

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Solution

The fourth proportional to 2,807,729.70, 4,214,359.35 and 1,389,387.30 is: 2,085,449.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,807,729.70 : 4,214,359.35 = 1,389,387.30 : x
  2. Step 2: Convert to fraction form
    2,807,729.70/4,214,359.35 = 1,389,387.30/x
  3. Step 3: Cross multiply
    2,807,729.70x = 4,214,359.35 × 1,389,387.30
  4. Step 4: Simplify right side
    2,807,729.70x = 5,855,377,358,526.26
  5. Step 5: Solve for x
    x = 5,855,377,358,526.26/2,807,729.70
  6. Step 6: Final answer
    x = 2,085,449.09

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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.