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Finding the Fourth Proportional to 404,790.22, 606,240.73 and 319,981.06

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Solution

The fourth proportional to 404,790.22, 606,240.73 and 319,981.06 is: 479,224.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,790.22 : 606,240.73 = 319,981.06 : x
  2. Step 2: Convert to fraction form
    404,790.22/606,240.73 = 319,981.06/x
  3. Step 3: Cross multiply
    404,790.22x = 606,240.73 × 319,981.06
  4. Step 4: Simplify right side
    404,790.22x = 193,985,551,400.57
  5. Step 5: Solve for x
    x = 193,985,551,400.57/404,790.22
  6. Step 6: Final answer
    x = 479,224.90

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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.