Home / 1,078,351.98-1,617,863.59-320,197.40

Finding the Fourth Proportional to 1,078,351.98, 1,617,863.59 and 320,197.40

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Solution

The fourth proportional to 1,078,351.98, 1,617,863.59 and 320,197.40 is: 480,395.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,351.98 : 1,617,863.59 = 320,197.40 : x
  2. Step 2: Convert to fraction form
    1,078,351.98/1,617,863.59 = 320,197.40/x
  3. Step 3: Cross multiply
    1,078,351.98x = 1,617,863.59 × 320,197.40
  4. Step 4: Simplify right side
    1,078,351.98x = 518,035,715,072.67
  5. Step 5: Solve for x
    x = 518,035,715,072.67/1,078,351.98
  6. Step 6: Final answer
    x = 480,395.76

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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.