Home / 1,078,665.76-1,617,578.08-404,379.50

Finding the Fourth Proportional to 1,078,665.76, 1,617,578.08 and 404,379.50

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Solution

The fourth proportional to 1,078,665.76, 1,617,578.08 and 404,379.50 is: 606,411.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,665.76 : 1,617,578.08 = 404,379.50 : x
  2. Step 2: Convert to fraction form
    1,078,665.76/1,617,578.08 = 404,379.50/x
  3. Step 3: Cross multiply
    1,078,665.76x = 1,617,578.08 × 404,379.50
  4. Step 4: Simplify right side
    1,078,665.76x = 654,115,415,201.36
  5. Step 5: Solve for x
    x = 654,115,415,201.36/1,078,665.76
  6. Step 6: Final answer
    x = 606,411.59

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.