Home / 1,581,309.23-2,181,315.89-1,000,352.12

Finding the Fourth Proportional to 1,581,309.23, 2,181,315.89 and 1,000,352.12

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Solution

The fourth proportional to 1,581,309.23, 2,181,315.89 and 1,000,352.12 is: 1,379,922.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,581,309.23 : 2,181,315.89 = 1,000,352.12 : x
  2. Step 2: Convert to fraction form
    1,581,309.23/2,181,315.89 = 1,000,352.12/x
  3. Step 3: Cross multiply
    1,581,309.23x = 2,181,315.89 × 1,000,352.12
  4. Step 4: Simplify right side
    1,581,309.23x = 2,182,083,966,545.49
  5. Step 5: Solve for x
    x = 2,182,083,966,545.49/1,581,309.23
  6. Step 6: Final answer
    x = 1,379,922.37

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.