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Finding the Fourth Proportional to 571,667.22, 858,014.78 and 305,655.12

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Solution

The fourth proportional to 571,667.22, 858,014.78 and 305,655.12 is: 458,757.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    571,667.22 : 858,014.78 = 305,655.12 : x
  2. Step 2: Convert to fraction form
    571,667.22/858,014.78 = 305,655.12/x
  3. Step 3: Cross multiply
    571,667.22x = 858,014.78 × 305,655.12
  4. Step 4: Simplify right side
    571,667.22x = 262,256,609,014.40
  5. Step 5: Solve for x
    x = 262,256,609,014.40/571,667.22
  6. Step 6: Final answer
    x = 458,757.47

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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.