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Finding the Fourth Proportional to 673,902.20, 930,006.80 and 367,994.56

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Solution

The fourth proportional to 673,902.20, 930,006.80 and 367,994.56 is: 507,844.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    673,902.20 : 930,006.80 = 367,994.56 : x
  2. Step 2: Convert to fraction form
    673,902.20/930,006.80 = 367,994.56/x
  3. Step 3: Cross multiply
    673,902.20x = 930,006.80 × 367,994.56
  4. Step 4: Simplify right side
    673,902.20x = 342,237,443,163.01
  5. Step 5: Solve for x
    x = 342,237,443,163.01/673,902.20
  6. Step 6: Final answer
    x = 507,844.38

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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.