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Finding the Fourth Proportional to 658,622, 908,914.20 and 403,825.52

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Solution

The fourth proportional to 658,622, 908,914.20 and 403,825.52 is: 557,288.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    658,622 : 908,914.20 = 403,825.52 : x
  2. Step 2: Convert to fraction form
    658,622/908,914.20 = 403,825.52/x
  3. Step 3: Cross multiply
    658,622x = 908,914.20 × 403,825.52
  4. Step 4: Simplify right side
    658,622x = 367,042,749,450.38
  5. Step 5: Solve for x
    x = 367,042,749,450.38/658,622
  6. Step 6: Final answer
    x = 557,288.93

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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.