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Finding the Fourth Proportional to 404,728.53, 558,526.09 and 223,440.76

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Solution

The fourth proportional to 404,728.53, 558,526.09 and 223,440.76 is: 308,348.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,728.53 : 558,526.09 = 223,440.76 : x
  2. Step 2: Convert to fraction form
    404,728.53/558,526.09 = 223,440.76/x
  3. Step 3: Cross multiply
    404,728.53x = 558,526.09 × 223,440.76
  4. Step 4: Simplify right side
    404,728.53x = 124,797,493,470.83
  5. Step 5: Solve for x
    x = 124,797,493,470.83/404,728.53
  6. Step 6: Final answer
    x = 308,348.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.