Home / 790,812.34-1,091,399.09-451,331.38

Finding the Fourth Proportional to 790,812.34, 1,091,399.09 and 451,331.38

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Solution

The fourth proportional to 790,812.34, 1,091,399.09 and 451,331.38 is: 622,881.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    790,812.34 : 1,091,399.09 = 451,331.38 : x
  2. Step 2: Convert to fraction form
    790,812.34/1,091,399.09 = 451,331.38/x
  3. Step 3: Cross multiply
    790,812.34x = 1,091,399.09 × 451,331.38
  4. Step 4: Simplify right side
    790,812.34x = 492,582,657,420.44
  5. Step 5: Solve for x
    x = 492,582,657,420.44/790,812.34
  6. Step 6: Final answer
    x = 622,881.86

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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.