Home / 1,216,169.52-1,678,302.78-672,319.32

Finding the Fourth Proportional to 1,216,169.52, 1,678,302.78 and 672,319.32

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Solution

The fourth proportional to 1,216,169.52, 1,678,302.78 and 672,319.32 is: 927,794.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,216,169.52 : 1,678,302.78 = 672,319.32 : x
  2. Step 2: Convert to fraction form
    1,216,169.52/1,678,302.78 = 672,319.32/x
  3. Step 3: Cross multiply
    1,216,169.52x = 1,678,302.78 × 672,319.32
  4. Step 4: Simplify right side
    1,216,169.52x = 1,128,355,383,803.71
  5. Step 5: Solve for x
    x = 1,128,355,383,803.71/1,216,169.52
  6. Step 6: Final answer
    x = 927,794.49

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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.