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Finding the Fourth Proportional to 440,900.65, 661,621.71 and 350,408.05

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Solution

The fourth proportional to 440,900.65, 661,621.71 and 350,408.05 is: 525,827.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    440,900.65 : 661,621.71 = 350,408.05 : x
  2. Step 2: Convert to fraction form
    440,900.65/661,621.71 = 350,408.05/x
  3. Step 3: Cross multiply
    440,900.65x = 661,621.71 × 350,408.05
  4. Step 4: Simplify right side
    440,900.65x = 231,837,573,238.77
  5. Step 5: Solve for x
    x = 231,837,573,238.77/440,900.65
  6. Step 6: Final answer
    x = 525,827.24

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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.