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Finding the Fourth Proportional to 404,709.62, 558,503.81 and 223,421.67

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Solution

The fourth proportional to 404,709.62, 558,503.81 and 223,421.67 is: 308,324.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    404,709.62 : 558,503.81 = 223,421.67 : x
  2. Step 2: Convert to fraction form
    404,709.62/558,503.81 = 223,421.67/x
  3. Step 3: Cross multiply
    404,709.62x = 558,503.81 × 223,421.67
  4. Step 4: Simplify right side
    404,709.62x = 124,781,854,490.12
  5. Step 5: Solve for x
    x = 124,781,854,490.12/404,709.62
  6. Step 6: Final answer
    x = 308,324.41

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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.