Home / 1,146,778.20-1,720,383.84-378,319.86

Finding the Fourth Proportional to 1,146,778.20, 1,720,383.84 and 378,319.86

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Solution

The fourth proportional to 1,146,778.20, 1,720,383.84 and 378,319.86 is: 567,551.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,146,778.20 : 1,720,383.84 = 378,319.86 : x
  2. Step 2: Convert to fraction form
    1,146,778.20/1,720,383.84 = 378,319.86/x
  3. Step 3: Cross multiply
    1,146,778.20x = 1,720,383.84 × 378,319.86
  4. Step 4: Simplify right side
    1,146,778.20x = 650,855,373,495.06
  5. Step 5: Solve for x
    x = 650,855,373,495.06/1,146,778.20
  6. Step 6: Final answer
    x = 567,551.23

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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.