Home / 1,330,296.80-1,994,927.54-431,521.20

Finding the Fourth Proportional to 1,330,296.80, 1,994,927.54 and 431,521.20

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Solution

The fourth proportional to 1,330,296.80, 1,994,927.54 and 431,521.20 is: 647,113.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,296.80 : 1,994,927.54 = 431,521.20 : x
  2. Step 2: Convert to fraction form
    1,330,296.80/1,994,927.54 = 431,521.20/x
  3. Step 3: Cross multiply
    1,330,296.80x = 1,994,927.54 × 431,521.20
  4. Step 4: Simplify right side
    1,330,296.80x = 860,853,523,816.24
  5. Step 5: Solve for x
    x = 860,853,523,816.24/1,330,296.80
  6. Step 6: Final answer
    x = 647,113.88

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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.