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Finding the Fourth Proportional to 796,276, 1,098,860.88 and 438,580

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Solution

The fourth proportional to 796,276, 1,098,860.88 and 438,580 is: 605,240.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    796,276 : 1,098,860.88 = 438,580 : x
  2. Step 2: Convert to fraction form
    796,276/1,098,860.88 = 438,580/x
  3. Step 3: Cross multiply
    796,276x = 1,098,860.88 × 438,580
  4. Step 4: Simplify right side
    796,276x = 481,938,404,750.40
  5. Step 5: Solve for x
    x = 481,938,404,750.40/796,276
  6. Step 6: Final answer
    x = 605,240.40

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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.