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Finding the Fourth Proportional to 647,578.20, 969,617.70 and 507,610.20

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Solution

The fourth proportional to 647,578.20, 969,617.70 and 507,610.20 is: 760,043.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,578.20 : 969,617.70 = 507,610.20 : x
  2. Step 2: Convert to fraction form
    647,578.20/969,617.70 = 507,610.20/x
  3. Step 3: Cross multiply
    647,578.20x = 969,617.70 × 507,610.20
  4. Step 4: Simplify right side
    647,578.20x = 492,187,834,620.54
  5. Step 5: Solve for x
    x = 492,187,834,620.54/647,578.20
  6. Step 6: Final answer
    x = 760,043.86

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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.