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Finding the Fourth Proportional to 449,836.77, 620,674.74 and 258,850.17

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Solution

The fourth proportional to 449,836.77, 620,674.74 and 258,850.17 is: 357,155.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,836.77 : 620,674.74 = 258,850.17 : x
  2. Step 2: Convert to fraction form
    449,836.77/620,674.74 = 258,850.17/x
  3. Step 3: Cross multiply
    449,836.77x = 620,674.74 × 258,850.17
  4. Step 4: Simplify right side
    449,836.77x = 160,661,761,963.71
  5. Step 5: Solve for x
    x = 160,661,761,963.71/449,836.77
  6. Step 6: Final answer
    x = 357,155.69

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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.