Home / 1,216,245.24-1,678,407.48-672,394.86

Finding the Fourth Proportional to 1,216,245.24, 1,678,407.48 and 672,394.86

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Solution

The fourth proportional to 1,216,245.24, 1,678,407.48 and 672,394.86 is: 927,898.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,245.24 : 1,678,407.48 = 672,394.86 : x
  2. Step 2: Convert to fraction form
    1,216,245.24/1,678,407.48 = 672,394.86/x
  3. Step 3: Cross multiply
    1,216,245.24x = 1,678,407.48 × 672,394.86
  4. Step 4: Simplify right side
    1,216,245.24x = 1,128,552,562,537.55
  5. Step 5: Solve for x
    x = 1,128,552,562,537.55/1,216,245.24
  6. Step 6: Final answer
    x = 927,898.85

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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.