Home / 769,309.67-1,061,650.60-420,457.14

Finding the Fourth Proportional to 769,309.67, 1,061,650.60 and 420,457.14

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Solution

The fourth proportional to 769,309.67, 1,061,650.60 and 420,457.14 is: 580,232.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    769,309.67 : 1,061,650.60 = 420,457.14 : x
  2. Step 2: Convert to fraction form
    769,309.67/1,061,650.60 = 420,457.14/x
  3. Step 3: Cross multiply
    769,309.67x = 1,061,650.60 × 420,457.14
  4. Step 4: Simplify right side
    769,309.67x = 446,378,573,904.14
  5. Step 5: Solve for x
    x = 446,378,573,904.14/769,309.67
  6. Step 6: Final answer
    x = 580,232.63

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Double scale
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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.