Home / 1,224,120.36-1,689,327.06-680,279.07

Finding the Fourth Proportional to 1,224,120.36, 1,689,327.06 and 680,279.07

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Solution

The fourth proportional to 1,224,120.36, 1,689,327.06 and 680,279.07 is: 938,807.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,224,120.36 : 1,689,327.06 = 680,279.07 : x
  2. Step 2: Convert to fraction form
    1,224,120.36/1,689,327.06 = 680,279.07/x
  3. Step 3: Cross multiply
    1,224,120.36x = 1,689,327.06 × 680,279.07
  4. Step 4: Simplify right side
    1,224,120.36x = 1,149,213,837,518.70
  5. Step 5: Solve for x
    x = 1,149,213,837,518.70/1,224,120.36
  6. Step 6: Final answer
    x = 938,807.88

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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.