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Finding the Fourth Proportional to 605,455.94, 835,466.34 and 372,845.90

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Solution

The fourth proportional to 605,455.94, 835,466.34 and 372,845.90 is: 514,488.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    605,455.94 : 835,466.34 = 372,845.90 : x
  2. Step 2: Convert to fraction form
    605,455.94/835,466.34 = 372,845.90/x
  3. Step 3: Cross multiply
    605,455.94x = 835,466.34 × 372,845.90
  4. Step 4: Simplify right side
    605,455.94x = 311,500,199,457.01
  5. Step 5: Solve for x
    x = 311,500,199,457.01/605,455.94
  6. Step 6: Final answer
    x = 514,488.63

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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.