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Finding the Fourth Proportional to 599,421.94, 899,010.87 and 220,212.34

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Solution

The fourth proportional to 599,421.94, 899,010.87 and 220,212.34 is: 330,273.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    599,421.94 : 899,010.87 = 220,212.34 : x
  2. Step 2: Convert to fraction form
    599,421.94/899,010.87 = 220,212.34/x
  3. Step 3: Cross multiply
    599,421.94x = 899,010.87 × 220,212.34
  4. Step 4: Simplify right side
    599,421.94x = 197,973,287,368.14
  5. Step 5: Solve for x
    x = 197,973,287,368.14/599,421.94
  6. Step 6: Final answer
    x = 330,273.68

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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.