Home / 1,218,563.78-1,681,670.48-674,699.49

Finding the Fourth Proportional to 1,218,563.78, 1,681,670.48 and 674,699.49

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Solution

The fourth proportional to 1,218,563.78, 1,681,670.48 and 674,699.49 is: 931,114.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,563.78 : 1,681,670.48 = 674,699.49 : x
  2. Step 2: Convert to fraction form
    1,218,563.78/1,681,670.48 = 674,699.49/x
  3. Step 3: Cross multiply
    1,218,563.78x = 1,681,670.48 × 674,699.49
  4. Step 4: Simplify right side
    1,218,563.78x = 1,134,622,211,830.56
  5. Step 5: Solve for x
    x = 1,134,622,211,830.56/1,218,563.78
  6. Step 6: Final answer
    x = 931,114.35

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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.