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Finding the Fourth Proportional to 447,939, 618,155.82 and 246,735

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Solution

The fourth proportional to 447,939, 618,155.82 and 246,735 is: 340,494.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,939 : 618,155.82 = 246,735 : x
  2. Step 2: Convert to fraction form
    447,939/618,155.82 = 246,735/x
  3. Step 3: Cross multiply
    447,939x = 618,155.82 × 246,735
  4. Step 4: Simplify right side
    447,939x = 152,520,676,247.70
  5. Step 5: Solve for x
    x = 152,520,676,247.70/447,939
  6. Step 6: Final answer
    x = 340,494.30

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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.