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Finding the Fourth Proportional to 540,361.68, 809,878.10 and 303,206.10

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Solution

The fourth proportional to 540,361.68, 809,878.10 and 303,206.10 is: 454,436.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    540,361.68 : 809,878.10 = 303,206.10 : x
  2. Step 2: Convert to fraction form
    540,361.68/809,878.10 = 303,206.10/x
  3. Step 3: Cross multiply
    540,361.68x = 809,878.10 × 303,206.10
  4. Step 4: Simplify right side
    540,361.68x = 245,559,980,176.41
  5. Step 5: Solve for x
    x = 245,559,980,176.41/540,361.68
  6. Step 6: Final answer
    x = 454,436.33

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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.