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Finding the Fourth Proportional to 450,438.32, 621,604.83 and 246,489.28

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Solution

The fourth proportional to 450,438.32, 621,604.83 and 246,489.28 is: 340,155.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,438.32 : 621,604.83 = 246,489.28 : x
  2. Step 2: Convert to fraction form
    450,438.32/621,604.83 = 246,489.28/x
  3. Step 3: Cross multiply
    450,438.32x = 621,604.83 × 246,489.28
  4. Step 4: Simplify right side
    450,438.32x = 153,218,926,361.55
  5. Step 5: Solve for x
    x = 153,218,926,361.55/450,438.32
  6. Step 6: Final answer
    x = 340,155.18

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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.