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Finding the Fourth Proportional to 978,155.10, 1,467,961.65 and 504,596.70

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Solution

The fourth proportional to 978,155.10, 1,467,961.65 and 504,596.70 is: 757,271.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,155.10 : 1,467,961.65 = 504,596.70 : x
  2. Step 2: Convert to fraction form
    978,155.10/1,467,961.65 = 504,596.70/x
  3. Step 3: Cross multiply
    978,155.10x = 1,467,961.65 × 504,596.70
  4. Step 4: Simplify right side
    978,155.10x = 740,728,604,316.56
  5. Step 5: Solve for x
    x = 740,728,604,316.56/978,155.10
  6. Step 6: Final answer
    x = 757,271.12

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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.