Home / 453,739.92-678,899.76-270,693.78

Finding the Fourth Proportional to 453,739.92, 678,899.76 and 270,693.78

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Solution

The fourth proportional to 453,739.92, 678,899.76 and 270,693.78 is: 405,020.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    453,739.92 : 678,899.76 = 270,693.78 : x
  2. Step 2: Convert to fraction form
    453,739.92/678,899.76 = 270,693.78/x
  3. Step 3: Cross multiply
    453,739.92x = 678,899.76 × 270,693.78
  4. Step 4: Simplify right side
    453,739.92x = 183,773,942,275.49
  5. Step 5: Solve for x
    x = 183,773,942,275.49/453,739.92
  6. Step 6: Final answer
    x = 405,020.44

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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.