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Finding the Fourth Proportional to 647,529.10, 971,524.05 and 624,489.10

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Solution

The fourth proportional to 647,529.10, 971,524.05 and 624,489.10 is: 936,955.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,529.10 : 971,524.05 = 624,489.10 : x
  2. Step 2: Convert to fraction form
    647,529.10/971,524.05 = 624,489.10/x
  3. Step 3: Cross multiply
    647,529.10x = 971,524.05 × 624,489.10
  4. Step 4: Simplify right side
    647,529.10x = 606,706,179,612.86
  5. Step 5: Solve for x
    x = 606,706,179,612.86/647,529.10
  6. Step 6: Final answer
    x = 936,955.85

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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.