Home / 681,703.82-1,020,976.99-339,523.98

Finding the Fourth Proportional to 681,703.82, 1,020,976.99 and 339,523.98

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Solution

The fourth proportional to 681,703.82, 1,020,976.99 and 339,523.98 is: 508,499.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,703.82 : 1,020,976.99 = 339,523.98 : x
  2. Step 2: Convert to fraction form
    681,703.82/1,020,976.99 = 339,523.98/x
  3. Step 3: Cross multiply
    681,703.82x = 1,020,976.99 × 339,523.98
  4. Step 4: Simplify right side
    681,703.82x = 346,646,166,455.75
  5. Step 5: Solve for x
    x = 346,646,166,455.75/681,703.82
  6. Step 6: Final answer
    x = 508,499.67

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Double scale
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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.