Home / 1,189,981.08-1,785,321.57-479,643.48

Finding the Fourth Proportional to 1,189,981.08, 1,785,321.57 and 479,643.48

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Solution

The fourth proportional to 1,189,981.08, 1,785,321.57 and 479,643.48 is: 719,606.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,981.08 : 1,785,321.57 = 479,643.48 : x
  2. Step 2: Convert to fraction form
    1,189,981.08/1,785,321.57 = 479,643.48/x
  3. Step 3: Cross multiply
    1,189,981.08x = 1,785,321.57 × 479,643.48
  4. Step 4: Simplify right side
    1,189,981.08x = 856,317,850,753.86
  5. Step 5: Solve for x
    x = 856,317,850,753.86/1,189,981.08
  6. Step 6: Final answer
    x = 719,606.27

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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.