Home / 453,736.79-678,895.12-270,690.66

Finding the Fourth Proportional to 453,736.79, 678,895.12 and 270,690.66

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Solution

The fourth proportional to 453,736.79, 678,895.12 and 270,690.66 is: 405,015.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,736.79 : 678,895.12 = 270,690.66 : x
  2. Step 2: Convert to fraction form
    453,736.79/678,895.12 = 270,690.66/x
  3. Step 3: Cross multiply
    453,736.79x = 678,895.12 × 270,690.66
  4. Step 4: Simplify right side
    453,736.79x = 183,770,567,426.85
  5. Step 5: Solve for x
    x = 183,770,567,426.85/453,736.79
  6. Step 6: Final answer
    x = 405,015.80

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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.