Home / 1,078,543.62-1,617,585.75-320,179.50

Finding the Fourth Proportional to 1,078,543.62, 1,617,585.75 and 320,179.50

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Solution

The fourth proportional to 1,078,543.62, 1,617,585.75 and 320,179.50 is: 480,201.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,543.62 : 1,617,585.75 = 320,179.50 : x
  2. Step 2: Convert to fraction form
    1,078,543.62/1,617,585.75 = 320,179.50/x
  3. Step 3: Cross multiply
    1,078,543.62x = 1,617,585.75 × 320,179.50
  4. Step 4: Simplify right side
    1,078,543.62x = 517,917,796,642.13
  5. Step 5: Solve for x
    x = 517,917,796,642.13/1,078,543.62
  6. Step 6: Final answer
    x = 480,201.07

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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.