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Finding the Fourth Proportional to 613,044.45, 845,988.03 and 354,932.28

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Solution

The fourth proportional to 613,044.45, 845,988.03 and 354,932.28 is: 489,798.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,044.45 : 845,988.03 = 354,932.28 : x
  2. Step 2: Convert to fraction form
    613,044.45/845,988.03 = 354,932.28/x
  3. Step 3: Cross multiply
    613,044.45x = 845,988.03 × 354,932.28
  4. Step 4: Simplify right side
    613,044.45x = 300,268,460,340.61
  5. Step 5: Solve for x
    x = 300,268,460,340.61/613,044.45
  6. Step 6: Final answer
    x = 489,798.84

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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.