Home / 1,438,223-2,156,773.78-539,174.68

Finding the Fourth Proportional to 1,438,223, 2,156,773.78 and 539,174.68

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Solution

The fourth proportional to 1,438,223, 2,156,773.78 and 539,174.68 is: 808,551.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,223 : 2,156,773.78 = 539,174.68 : x
  2. Step 2: Convert to fraction form
    1,438,223/2,156,773.78 = 539,174.68/x
  3. Step 3: Cross multiply
    1,438,223x = 2,156,773.78 × 539,174.68
  4. Step 4: Simplify right side
    1,438,223x = 1,162,877,812,663.89
  5. Step 5: Solve for x
    x = 1,162,877,812,663.89/1,438,223
  6. Step 6: Final answer
    x = 808,551.81

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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.