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Finding the Fourth Proportional to 647,512.10, 971,498.55 and 624,472.10

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Solution

The fourth proportional to 647,512.10, 971,498.55 and 624,472.10 is: 936,930.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,512.10 : 971,498.55 = 624,472.10 : x
  2. Step 2: Convert to fraction form
    647,512.10/971,498.55 = 624,472.10/x
  3. Step 3: Cross multiply
    647,512.10x = 971,498.55 × 624,472.10
  4. Step 4: Simplify right side
    647,512.10x = 606,673,739,665.46
  5. Step 5: Solve for x
    x = 606,673,739,665.46/647,512.10
  6. Step 6: Final answer
    x = 936,930.35

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1.5x scale

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.