Home / 817,127.08-1,223,507.58-479,890.60

Finding the Fourth Proportional to 817,127.08, 1,223,507.58 and 479,890.60

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Solution

The fourth proportional to 817,127.08, 1,223,507.58 and 479,890.60 is: 718,553.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,127.08 : 1,223,507.58 = 479,890.60 : x
  2. Step 2: Convert to fraction form
    817,127.08/1,223,507.58 = 479,890.60/x
  3. Step 3: Cross multiply
    817,127.08x = 1,223,507.58 × 479,890.60
  4. Step 4: Simplify right side
    817,127.08x = 587,149,786,670.75
  5. Step 5: Solve for x
    x = 587,149,786,670.75/817,127.08
  6. Step 6: Final answer
    x = 718,553.82

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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.