Home / 738,933.21-1,019,727.27-399,401.46

Finding the Fourth Proportional to 738,933.21, 1,019,727.27 and 399,401.46

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Solution

The fourth proportional to 738,933.21, 1,019,727.27 and 399,401.46 is: 551,173.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    738,933.21 : 1,019,727.27 = 399,401.46 : x
  2. Step 2: Convert to fraction form
    738,933.21/1,019,727.27 = 399,401.46/x
  3. Step 3: Cross multiply
    738,933.21x = 1,019,727.27 × 399,401.46
  4. Step 4: Simplify right side
    738,933.21x = 407,280,560,439.81
  5. Step 5: Solve for x
    x = 407,280,560,439.81/738,933.21
  6. Step 6: Final answer
    x = 551,173.71

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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.