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Finding the Fourth Proportional to 404,912.16, 558,783 and 223,628.69

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Solution

The fourth proportional to 404,912.16, 558,783 and 223,628.69 is: 308,609.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,912.16 : 558,783 = 223,628.69 : x
  2. Step 2: Convert to fraction form
    404,912.16/558,783 = 223,628.69/x
  3. Step 3: Cross multiply
    404,912.16x = 558,783 × 223,628.69
  4. Step 4: Simplify right side
    404,912.16x = 124,959,911,681.23
  5. Step 5: Solve for x
    x = 124,959,911,681.23/404,912.16
  6. Step 6: Final answer
    x = 308,609.93

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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.