Home / 840,370.62-1,260,555.21-307,933.32

Finding the Fourth Proportional to 840,370.62, 1,260,555.21 and 307,933.32

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Solution

The fourth proportional to 840,370.62, 1,260,555.21 and 307,933.32 is: 461,899.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,370.62 : 1,260,555.21 = 307,933.32 : x
  2. Step 2: Convert to fraction form
    840,370.62/1,260,555.21 = 307,933.32/x
  3. Step 3: Cross multiply
    840,370.62x = 1,260,555.21 × 307,933.32
  4. Step 4: Simplify right side
    840,370.62x = 388,166,950,858.60
  5. Step 5: Solve for x
    x = 388,166,950,858.60/840,370.62
  6. Step 6: Final answer
    x = 461,899.72

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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.