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Finding the Fourth Proportional to 647,746.97, 971,745.00 and 248,356.60

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Solution

The fourth proportional to 647,746.97, 971,745.00 and 248,356.60 is: 372,582.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,746.97 : 971,745.00 = 248,356.60 : x
  2. Step 2: Convert to fraction form
    647,746.97/971,745.00 = 248,356.60/x
  3. Step 3: Cross multiply
    647,746.97x = 971,745.00 × 248,356.60
  4. Step 4: Simplify right side
    647,746.97x = 241,339,278,166.49
  5. Step 5: Solve for x
    x = 241,339,278,166.49/647,746.97
  6. Step 6: Final answer
    x = 372,582.64

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Double scale
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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.