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Finding the Fourth Proportional to 968,838, 1,453,490.40 and 303,990

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Solution

The fourth proportional to 968,838, 1,453,490.40 and 303,990 is: 456,058.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    968,838 : 1,453,490.40 = 303,990 : x
  2. Step 2: Convert to fraction form
    968,838/1,453,490.40 = 303,990/x
  3. Step 3: Cross multiply
    968,838x = 1,453,490.40 × 303,990
  4. Step 4: Simplify right side
    968,838x = 441,846,546,696
  5. Step 5: Solve for x
    x = 441,846,546,696/968,838
  6. Step 6: Final answer
    x = 456,058.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.