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Finding the Fourth Proportional to 713,660.43, 984,760.65 and 407,756.62

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Solution

The fourth proportional to 713,660.43, 984,760.65 and 407,756.62 is: 562,652.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    713,660.43 : 984,760.65 = 407,756.62 : x
  2. Step 2: Convert to fraction form
    713,660.43/984,760.65 = 407,756.62/x
  3. Step 3: Cross multiply
    713,660.43x = 984,760.65 × 407,756.62
  4. Step 4: Simplify right side
    713,660.43x = 401,542,675,383.95
  5. Step 5: Solve for x
    x = 401,542,675,383.95/713,660.43
  6. Step 6: Final answer
    x = 562,652.29

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1.5x scale

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.