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Finding the Fourth Proportional to 449,564.32, 620,411.28 and 248,373.28

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Solution

The fourth proportional to 449,564.32, 620,411.28 and 248,373.28 is: 342,762.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,564.32 : 620,411.28 = 248,373.28 : x
  2. Step 2: Convert to fraction form
    449,564.32/620,411.28 = 248,373.28/x
  3. Step 3: Cross multiply
    449,564.32x = 620,411.28 × 248,373.28
  4. Step 4: Simplify right side
    449,564.32x = 154,093,584,562.60
  5. Step 5: Solve for x
    x = 154,093,584,562.60/449,564.32
  6. Step 6: Final answer
    x = 342,762.04

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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.