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Finding the Fourth Proportional to 661,671.84, 993,009.60 and 484,638.24

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Solution

The fourth proportional to 661,671.84, 993,009.60 and 484,638.24 is: 727,324.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,671.84 : 993,009.60 = 484,638.24 : x
  2. Step 2: Convert to fraction form
    661,671.84/993,009.60 = 484,638.24/x
  3. Step 3: Cross multiply
    661,671.84x = 993,009.60 × 484,638.24
  4. Step 4: Simplify right side
    661,671.84x = 481,250,424,847.10
  5. Step 5: Solve for x
    x = 481,250,424,847.10/661,671.84
  6. Step 6: Final answer
    x = 727,324.93

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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.