Home / 1,189,944.95-1,785,626.67-431,845.66

Finding the Fourth Proportional to 1,189,944.95, 1,785,626.67 and 431,845.66

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Solution

The fourth proportional to 1,189,944.95, 1,785,626.67 and 431,845.66 is: 648,025.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,944.95 : 1,785,626.67 = 431,845.66 : x
  2. Step 2: Convert to fraction form
    1,189,944.95/1,785,626.67 = 431,845.66/x
  3. Step 3: Cross multiply
    1,189,944.95x = 1,785,626.67 × 431,845.66
  4. Step 4: Simplify right side
    1,189,944.95x = 771,115,131,671.21
  5. Step 5: Solve for x
    x = 771,115,131,671.21/1,189,944.95
  6. Step 6: Final answer
    x = 648,025.89

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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.