Home / 430,744.68-647,297.46-406,288.44

Finding the Fourth Proportional to 430,744.68, 647,297.46 and 406,288.44

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Solution

The fourth proportional to 430,744.68, 647,297.46 and 406,288.44 is: 610,546.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,744.68 : 647,297.46 = 406,288.44 : x
  2. Step 2: Convert to fraction form
    430,744.68/647,297.46 = 406,288.44/x
  3. Step 3: Cross multiply
    430,744.68x = 647,297.46 × 406,288.44
  4. Step 4: Simplify right side
    430,744.68x = 262,989,475,239.36
  5. Step 5: Solve for x
    x = 262,989,475,239.36/430,744.68
  6. Step 6: Final answer
    x = 610,546.08

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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.