Home / 1,230,608.70-1,845,900.90-389,160.45

Finding the Fourth Proportional to 1,230,608.70, 1,845,900.90 and 389,160.45

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Solution

The fourth proportional to 1,230,608.70, 1,845,900.90 and 389,160.45 is: 583,736.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,608.70 : 1,845,900.90 = 389,160.45 : x
  2. Step 2: Convert to fraction form
    1,230,608.70/1,845,900.90 = 389,160.45/x
  3. Step 3: Cross multiply
    1,230,608.70x = 1,845,900.90 × 389,160.45
  4. Step 4: Simplify right side
    1,230,608.70x = 718,351,624,899.41
  5. Step 5: Solve for x
    x = 718,351,624,899.41/1,230,608.70
  6. Step 6: Final answer
    x = 583,736.83

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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.