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Finding the Fourth Proportional to 659,907, 910,672.47 and 358,101

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Solution

The fourth proportional to 659,907, 910,672.47 and 358,101 is: 494,179.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    659,907 : 910,672.47 = 358,101 : x
  2. Step 2: Convert to fraction form
    659,907/910,672.47 = 358,101/x
  3. Step 3: Cross multiply
    659,907x = 910,672.47 × 358,101
  4. Step 4: Simplify right side
    659,907x = 326,112,722,179.47
  5. Step 5: Solve for x
    x = 326,112,722,179.47/659,907
  6. Step 6: Final answer
    x = 494,179.82

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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.