Home / 1,330,297.80-1,994,929.03-431,522.20

Finding the Fourth Proportional to 1,330,297.80, 1,994,929.03 and 431,522.20

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Solution

The fourth proportional to 1,330,297.80, 1,994,929.03 and 431,522.20 is: 647,115.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,297.80 : 1,994,929.03 = 431,522.20 : x
  2. Step 2: Convert to fraction form
    1,330,297.80/1,994,929.03 = 431,522.20/x
  3. Step 3: Cross multiply
    1,330,297.80x = 1,994,929.03 × 431,522.20
  4. Step 4: Simplify right side
    1,330,297.80x = 860,856,163,869.47
  5. Step 5: Solve for x
    x = 860,856,163,869.47/1,330,297.80
  6. Step 6: Final answer
    x = 647,115.38

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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.