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Finding the Fourth Proportional to 978,914.74, 1,469,813.54 and 547,477.49

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Solution

The fourth proportional to 978,914.74, 1,469,813.54 and 547,477.49 is: 822,022.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    978,914.74 : 1,469,813.54 = 547,477.49 : x
  2. Step 2: Convert to fraction form
    978,914.74/1,469,813.54 = 547,477.49/x
  3. Step 3: Cross multiply
    978,914.74x = 1,469,813.54 × 547,477.49
  4. Step 4: Simplify right side
    978,914.74x = 804,689,821,676.96
  5. Step 5: Solve for x
    x = 804,689,821,676.96/978,914.74
  6. Step 6: Final answer
    x = 822,022.37

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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.