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Finding the Fourth Proportional to 484,762.10, 727,179.60 and 129,768.26

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Solution

The fourth proportional to 484,762.10, 727,179.60 and 129,768.26 is: 194,662.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,762.10 : 727,179.60 = 129,768.26 : x
  2. Step 2: Convert to fraction form
    484,762.10/727,179.60 = 129,768.26/x
  3. Step 3: Cross multiply
    484,762.10x = 727,179.60 × 129,768.26
  4. Step 4: Simplify right side
    484,762.10x = 94,364,831,399.50
  5. Step 5: Solve for x
    x = 94,364,831,399.50/484,762.10
  6. Step 6: Final answer
    x = 194,662.15

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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.