Home / 1,216,211.24-1,678,360.56-672,360.86

Finding the Fourth Proportional to 1,216,211.24, 1,678,360.56 and 672,360.86

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Solution

The fourth proportional to 1,216,211.24, 1,678,360.56 and 672,360.86 is: 927,851.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,211.24 : 1,678,360.56 = 672,360.86 : x
  2. Step 2: Convert to fraction form
    1,216,211.24/1,678,360.56 = 672,360.86/x
  3. Step 3: Cross multiply
    1,216,211.24x = 1,678,360.56 × 672,360.86
  4. Step 4: Simplify right side
    1,216,211.24x = 1,128,463,949,511.68
  5. Step 5: Solve for x
    x = 1,128,463,949,511.68/1,216,211.24
  6. Step 6: Final answer
    x = 927,851.93

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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.