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Finding the Fourth Proportional to 450,121.92, 621,324.56 and 259,211.36

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Solution

The fourth proportional to 450,121.92, 621,324.56 and 259,211.36 is: 357,801.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,121.92 : 621,324.56 = 259,211.36 : x
  2. Step 2: Convert to fraction form
    450,121.92/621,324.56 = 259,211.36/x
  3. Step 3: Cross multiply
    450,121.92x = 621,324.56 × 259,211.36
  4. Step 4: Simplify right side
    450,121.92x = 161,054,384,199.00
  5. Step 5: Solve for x
    x = 161,054,384,199.00/450,121.92
  6. Step 6: Final answer
    x = 357,801.69

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.