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Finding the Fourth Proportional to 404,713.57, 558,490.06 and 223,421.60

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Solution

The fourth proportional to 404,713.57, 558,490.06 and 223,421.60 is: 308,313.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,713.57 : 558,490.06 = 223,421.60 : x
  2. Step 2: Convert to fraction form
    404,713.57/558,490.06 = 223,421.60/x
  3. Step 3: Cross multiply
    404,713.57x = 558,490.06 × 223,421.60
  4. Step 4: Simplify right side
    404,713.57x = 124,778,742,789.30
  5. Step 5: Solve for x
    x = 124,778,742,789.30/404,713.57
  6. Step 6: Final answer
    x = 308,313.71

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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.