Home / 738,954.28-1,019,756.32-399,422.56

Finding the Fourth Proportional to 738,954.28, 1,019,756.32 and 399,422.56

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Solution

The fourth proportional to 738,954.28, 1,019,756.32 and 399,422.56 is: 551,202.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,954.28 : 1,019,756.32 = 399,422.56 : x
  2. Step 2: Convert to fraction form
    738,954.28/1,019,756.32 = 399,422.56/x
  3. Step 3: Cross multiply
    738,954.28x = 1,019,756.32 × 399,422.56
  4. Step 4: Simplify right side
    738,954.28x = 407,313,679,910.58
  5. Step 5: Solve for x
    x = 407,313,679,910.58/738,954.28
  6. Step 6: Final answer
    x = 551,202.82

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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.