Home / 1,986,689.22-2,980,478.06-724,516.85

Finding the Fourth Proportional to 1,986,689.22, 2,980,478.06 and 724,516.85

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Solution

The fourth proportional to 1,986,689.22, 2,980,478.06 and 724,516.85 is: 1,086,937.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,986,689.22 : 2,980,478.06 = 724,516.85 : x
  2. Step 2: Convert to fraction form
    1,986,689.22/2,980,478.06 = 724,516.85/x
  3. Step 3: Cross multiply
    1,986,689.22x = 2,980,478.06 × 724,516.85
  4. Step 4: Simplify right side
    1,986,689.22x = 2,159,406,562,434.21
  5. Step 5: Solve for x
    x = 2,159,406,562,434.21/1,986,689.22
  6. Step 6: Final answer
    x = 1,086,937.27

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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.