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Finding the Fourth Proportional to 605,409.32, 835,276.23 and 343,721.81

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Solution

The fourth proportional to 605,409.32, 835,276.23 and 343,721.81 is: 474,229.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,409.32 : 835,276.23 = 343,721.81 : x
  2. Step 2: Convert to fraction form
    605,409.32/835,276.23 = 343,721.81/x
  3. Step 3: Cross multiply
    605,409.32x = 835,276.23 × 343,721.81
  4. Step 4: Simplify right side
    605,409.32x = 287,102,657,625.58
  5. Step 5: Solve for x
    x = 287,102,657,625.58/605,409.32
  6. Step 6: Final answer
    x = 474,229.00

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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.