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Finding the Fourth Proportional to 616,020.20, 923,339.10 and 349,908.20

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Solution

The fourth proportional to 616,020.20, 923,339.10 and 349,908.20 is: 524,469.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,020.20 : 923,339.10 = 349,908.20 : x
  2. Step 2: Convert to fraction form
    616,020.20/923,339.10 = 349,908.20/x
  3. Step 3: Cross multiply
    616,020.20x = 923,339.10 × 349,908.20
  4. Step 4: Simplify right side
    616,020.20x = 323,083,922,470.62
  5. Step 5: Solve for x
    x = 323,083,922,470.62/616,020.20
  6. Step 6: Final answer
    x = 524,469.69

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1.5x scale

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.