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Finding the Fourth Proportional to 606,718.80, 910,661.40 and 307,537.20

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Solution

The fourth proportional to 606,718.80, 910,661.40 and 307,537.20 is: 461,601.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    606,718.80 : 910,661.40 = 307,537.20 : x
  2. Step 2: Convert to fraction form
    606,718.80/910,661.40 = 307,537.20/x
  3. Step 3: Cross multiply
    606,718.80x = 910,661.40 × 307,537.20
  4. Step 4: Simplify right side
    606,718.80x = 280,062,257,104.08
  5. Step 5: Solve for x
    x = 280,062,257,104.08/606,718.80
  6. Step 6: Final answer
    x = 461,601.42

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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.