Home / 1,218,224.32-1,681,129.14-674,348.46

Finding the Fourth Proportional to 1,218,224.32, 1,681,129.14 and 674,348.46

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Solution

The fourth proportional to 1,218,224.32, 1,681,129.14 and 674,348.46 is: 930,589.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,224.32 : 1,681,129.14 = 674,348.46 : x
  2. Step 2: Convert to fraction form
    1,218,224.32/1,681,129.14 = 674,348.46/x
  3. Step 3: Cross multiply
    1,218,224.32x = 1,681,129.14 × 674,348.46
  4. Step 4: Simplify right side
    1,218,224.32x = 1,133,666,846,620.12
  5. Step 5: Solve for x
    x = 1,133,666,846,620.12/1,218,224.32
  6. Step 6: Final answer
    x = 930,589.57

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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.