Home / 1,478,440.72-2,040,236.32-858,303.43

Finding the Fourth Proportional to 1,478,440.72, 2,040,236.32 and 858,303.43

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Solution

The fourth proportional to 1,478,440.72, 2,040,236.32 and 858,303.43 is: 1,184,451.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,440.72 : 2,040,236.32 = 858,303.43 : x
  2. Step 2: Convert to fraction form
    1,478,440.72/2,040,236.32 = 858,303.43/x
  3. Step 3: Cross multiply
    1,478,440.72x = 2,040,236.32 × 858,303.43
  4. Step 4: Simplify right side
    1,478,440.72x = 1,751,141,837,305.88
  5. Step 5: Solve for x
    x = 1,751,141,837,305.88/1,478,440.72
  6. Step 6: Final answer
    x = 1,184,451.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.