Home / 2,087,123.10-3,131,721.45-824,991.90

Finding the Fourth Proportional to 2,087,123.10, 3,131,721.45 and 824,991.90

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Solution

The fourth proportional to 2,087,123.10, 3,131,721.45 and 824,991.90 is: 1,237,897.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,087,123.10 : 3,131,721.45 = 824,991.90 : x
  2. Step 2: Convert to fraction form
    2,087,123.10/3,131,721.45 = 824,991.90/x
  3. Step 3: Cross multiply
    2,087,123.10x = 3,131,721.45 × 824,991.90
  4. Step 4: Simplify right side
    2,087,123.10x = 2,583,644,829,306.26
  5. Step 5: Solve for x
    x = 2,583,644,829,306.26/2,087,123.10
  6. Step 6: Final answer
    x = 1,237,897.67

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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.