Home / 1,222,374.78-1,686,697.36-678,514.73

Finding the Fourth Proportional to 1,222,374.78, 1,686,697.36 and 678,514.73

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Solution

The fourth proportional to 1,222,374.78, 1,686,697.36 and 678,514.73 is: 936,250.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,374.78 : 1,686,697.36 = 678,514.73 : x
  2. Step 2: Convert to fraction form
    1,222,374.78/1,686,697.36 = 678,514.73/x
  3. Step 3: Cross multiply
    1,222,374.78x = 1,686,697.36 × 678,514.73
  4. Step 4: Simplify right side
    1,222,374.78x = 1,144,448,993,682.34
  5. Step 5: Solve for x
    x = 1,144,448,993,682.34/1,222,374.78
  6. Step 6: Final answer
    x = 936,250.50

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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.