Home / 782,697.54-1,082,296.83-621,272.34

Finding the Fourth Proportional to 782,697.54, 1,082,296.83 and 621,272.34

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Solution

The fourth proportional to 782,697.54, 1,082,296.83 and 621,272.34 is: 859,081.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,697.54 : 1,082,296.83 = 621,272.34 : x
  2. Step 2: Convert to fraction form
    782,697.54/1,082,296.83 = 621,272.34/x
  3. Step 3: Cross multiply
    782,697.54x = 1,082,296.83 × 621,272.34
  4. Step 4: Simplify right side
    782,697.54x = 672,401,084,148.68
  5. Step 5: Solve for x
    x = 672,401,084,148.68/782,697.54
  6. Step 6: Final answer
    x = 859,081.64

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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.