Home / 1,385,270.43-2,078,113.41-486,553.77

Finding the Fourth Proportional to 1,385,270.43, 2,078,113.41 and 486,553.77

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Solution

The fourth proportional to 1,385,270.43, 2,078,113.41 and 486,553.77 is: 729,903.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,385,270.43 : 2,078,113.41 = 486,553.77 : x
  2. Step 2: Convert to fraction form
    1,385,270.43/2,078,113.41 = 486,553.77/x
  3. Step 3: Cross multiply
    1,385,270.43x = 2,078,113.41 × 486,553.77
  4. Step 4: Simplify right side
    1,385,270.43x = 1,011,113,914,123.06
  5. Step 5: Solve for x
    x = 1,011,113,914,123.06/1,385,270.43
  6. Step 6: Final answer
    x = 729,903.63

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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.