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Finding the Fourth Proportional to 664,361.10, 995,521.05 and 495,087.30

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Solution

The fourth proportional to 664,361.10, 995,521.05 and 495,087.30 is: 741,870.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,361.10 : 995,521.05 = 495,087.30 : x
  2. Step 2: Convert to fraction form
    664,361.10/995,521.05 = 495,087.30/x
  3. Step 3: Cross multiply
    664,361.10x = 995,521.05 × 495,087.30
  4. Step 4: Simplify right side
    664,361.10x = 492,869,828,737.67
  5. Step 5: Solve for x
    x = 492,869,828,737.67/664,361.10
  6. Step 6: Final answer
    x = 741,870.39

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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.