Home / 1,079,399.70-1,489,619.97-620,663.22

Finding the Fourth Proportional to 1,079,399.70, 1,489,619.97 and 620,663.22

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Solution

The fourth proportional to 1,079,399.70, 1,489,619.97 and 620,663.22 is: 856,543.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,399.70 : 1,489,619.97 = 620,663.22 : x
  2. Step 2: Convert to fraction form
    1,079,399.70/1,489,619.97 = 620,663.22/x
  3. Step 3: Cross multiply
    1,079,399.70x = 1,489,619.97 × 620,663.22
  4. Step 4: Simplify right side
    1,079,399.70x = 924,552,327,156.50
  5. Step 5: Solve for x
    x = 924,552,327,156.50/1,079,399.70
  6. Step 6: Final answer
    x = 856,543.06

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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.