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Finding the Fourth Proportional to 647,580.20, 969,620.70 and 507,612.20

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Solution

The fourth proportional to 647,580.20, 969,620.70 and 507,612.20 is: 760,046.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,580.20 : 969,620.70 = 507,612.20 : x
  2. Step 2: Convert to fraction form
    647,580.20/969,620.70 = 507,612.20/x
  3. Step 3: Cross multiply
    647,580.20x = 969,620.70 × 507,612.20
  4. Step 4: Simplify right side
    647,580.20x = 492,191,296,692.54
  5. Step 5: Solve for x
    x = 492,191,296,692.54/647,580.20
  6. Step 6: Final answer
    x = 760,046.86

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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.