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Finding the Fourth Proportional to 483,648.81, 725,472.36 and 128,662.84

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Solution

The fourth proportional to 483,648.81, 725,472.36 and 128,662.84 is: 192,994.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    483,648.81 : 725,472.36 = 128,662.84 : x
  2. Step 2: Convert to fraction form
    483,648.81/725,472.36 = 128,662.84/x
  3. Step 3: Cross multiply
    483,648.81x = 725,472.36 × 128,662.84
  4. Step 4: Simplify right side
    483,648.81x = 93,341,334,179.10
  5. Step 5: Solve for x
    x = 93,341,334,179.10/483,648.81
  6. Step 6: Final answer
    x = 192,994.03

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1.5x scale

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.