Home / 979,962.86-1,469,372.10-380,223.56

Finding the Fourth Proportional to 979,962.86, 1,469,372.10 and 380,223.56

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Solution

The fourth proportional to 979,962.86, 1,469,372.10 and 380,223.56 is: 570,113.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    979,962.86 : 1,469,372.10 = 380,223.56 : x
  2. Step 2: Convert to fraction form
    979,962.86/1,469,372.10 = 380,223.56/x
  3. Step 3: Cross multiply
    979,962.86x = 1,469,372.10 × 380,223.56
  4. Step 4: Simplify right side
    979,962.86x = 558,689,890,826.68
  5. Step 5: Solve for x
    x = 558,689,890,826.68/979,962.86
  6. Step 6: Final answer
    x = 570,113.33

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1.5x scale

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.