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Finding the Fourth Proportional to 604,238.19, 905,735.21 and 323,680.11

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Solution

The fourth proportional to 604,238.19, 905,735.21 and 323,680.11 is: 485,186.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,238.19 : 905,735.21 = 323,680.11 : x
  2. Step 2: Convert to fraction form
    604,238.19/905,735.21 = 323,680.11/x
  3. Step 3: Cross multiply
    604,238.19x = 905,735.21 × 323,680.11
  4. Step 4: Simplify right side
    604,238.19x = 293,168,470,785.27
  5. Step 5: Solve for x
    x = 293,168,470,785.27/604,238.19
  6. Step 6: Final answer
    x = 485,186.93

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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.