Home / 1,425,803.82-2,138,705.76-479,174.57

Finding the Fourth Proportional to 1,425,803.82, 2,138,705.76 and 479,174.57

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Solution

The fourth proportional to 1,425,803.82, 2,138,705.76 and 479,174.57 is: 718,761.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,425,803.82 : 2,138,705.76 = 479,174.57 : x
  2. Step 2: Convert to fraction form
    1,425,803.82/2,138,705.76 = 479,174.57/x
  3. Step 3: Cross multiply
    1,425,803.82x = 2,138,705.76 × 479,174.57
  4. Step 4: Simplify right side
    1,425,803.82x = 1,024,813,402,210.99
  5. Step 5: Solve for x
    x = 1,024,813,402,210.99/1,425,803.82
  6. Step 6: Final answer
    x = 718,761.86

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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.