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Finding the Fourth Proportional to 449,888.47, 620,443.71 and 373,286.06

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Solution

The fourth proportional to 449,888.47, 620,443.71 and 373,286.06 is: 514,800.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,888.47 : 620,443.71 = 373,286.06 : x
  2. Step 2: Convert to fraction form
    449,888.47/620,443.71 = 373,286.06/x
  3. Step 3: Cross multiply
    449,888.47x = 620,443.71 × 373,286.06
  4. Step 4: Simplify right side
    449,888.47x = 231,602,987,957.68
  5. Step 5: Solve for x
    x = 231,602,987,957.68/449,888.47
  6. Step 6: Final answer
    x = 514,800.90

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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.