Home / 1,216,285.34-1,678,327.83-672,347.39

Finding the Fourth Proportional to 1,216,285.34, 1,678,327.83 and 672,347.39

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Solution

The fourth proportional to 1,216,285.34, 1,678,327.83 and 672,347.39 is: 927,758.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,285.34 : 1,678,327.83 = 672,347.39 : x
  2. Step 2: Convert to fraction form
    1,216,285.34/1,678,327.83 = 672,347.39/x
  3. Step 3: Cross multiply
    1,216,285.34x = 1,678,327.83 × 672,347.39
  4. Step 4: Simplify right side
    1,216,285.34x = 1,128,419,327,673.22
  5. Step 5: Solve for x
    x = 1,128,419,327,673.22/1,216,285.34
  6. Step 6: Final answer
    x = 927,758.72

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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.