Home / 1,189,360.24-1,783,640.48-431,042.92

Finding the Fourth Proportional to 1,189,360.24, 1,783,640.48 and 431,042.92

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Solution

The fourth proportional to 1,189,360.24, 1,783,640.48 and 431,042.92 is: 646,419.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,360.24 : 1,783,640.48 = 431,042.92 : x
  2. Step 2: Convert to fraction form
    1,189,360.24/1,783,640.48 = 431,042.92/x
  3. Step 3: Cross multiply
    1,189,360.24x = 1,783,640.48 × 431,042.92
  4. Step 4: Simplify right side
    1,189,360.24x = 768,825,600,729.40
  5. Step 5: Solve for x
    x = 768,825,600,729.40/1,189,360.24
  6. Step 6: Final answer
    x = 646,419.46

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Double scale
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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.