Home / 1,986,889.88-2,980,779.26-724,717.50

Finding the Fourth Proportional to 1,986,889.88, 2,980,779.26 and 724,717.50

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Solution

The fourth proportional to 1,986,889.88, 2,980,779.26 and 724,717.50 is: 1,087,238.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,889.88 : 2,980,779.26 = 724,717.50 : x
  2. Step 2: Convert to fraction form
    1,986,889.88/2,980,779.26 = 724,717.50/x
  3. Step 3: Cross multiply
    1,986,889.88x = 2,980,779.26 × 724,717.50
  4. Step 4: Simplify right side
    1,986,889.88x = 2,160,222,893,359.05
  5. Step 5: Solve for x
    x = 2,160,222,893,359.05/1,986,889.88
  6. Step 6: Final answer
    x = 1,087,238.36

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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.