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Finding the Fourth Proportional to 449,602.64, 674,510 and 145,995.82

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Solution

The fourth proportional to 449,602.64, 674,510 and 145,995.82 is: 219,028.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,602.64 : 674,510 = 145,995.82 : x
  2. Step 2: Convert to fraction form
    449,602.64/674,510 = 145,995.82/x
  3. Step 3: Cross multiply
    449,602.64x = 674,510 × 145,995.82
  4. Step 4: Simplify right side
    449,602.64x = 98,475,640,548.20
  5. Step 5: Solve for x
    x = 98,475,640,548.20/449,602.64
  6. Step 6: Final answer
    x = 219,028.16

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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.