Home / 919,826.39-1,379,739.96-413,796.30

Finding the Fourth Proportional to 919,826.39, 1,379,739.96 and 413,796.30

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Solution

The fourth proportional to 919,826.39, 1,379,739.96 and 413,796.30 is: 620,694.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    919,826.39 : 1,379,739.96 = 413,796.30 : x
  2. Step 2: Convert to fraction form
    919,826.39/1,379,739.96 = 413,796.30/x
  3. Step 3: Cross multiply
    919,826.39x = 1,379,739.96 × 413,796.30
  4. Step 4: Simplify right side
    919,826.39x = 570,931,290,410.15
  5. Step 5: Solve for x
    x = 570,931,290,410.15/919,826.39
  6. Step 6: Final answer
    x = 620,694.62

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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.