Home / 1,243,723.01-1,865,910.33-390,760.20

Finding the Fourth Proportional to 1,243,723.01, 1,865,910.33 and 390,760.20

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Solution

The fourth proportional to 1,243,723.01, 1,865,910.33 and 390,760.20 is: 586,242.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,723.01 : 1,865,910.33 = 390,760.20 : x
  2. Step 2: Convert to fraction form
    1,243,723.01/1,865,910.33 = 390,760.20/x
  3. Step 3: Cross multiply
    1,243,723.01x = 1,865,910.33 × 390,760.20
  4. Step 4: Simplify right side
    1,243,723.01x = 729,123,493,732.87
  5. Step 5: Solve for x
    x = 729,123,493,732.87/1,243,723.01
  6. Step 6: Final answer
    x = 586,242.67

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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.