Home / 1,078,054.40-1,617,086.40-279,279.20

Finding the Fourth Proportional to 1,078,054.40, 1,617,086.40 and 279,279.20

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Solution

The fourth proportional to 1,078,054.40, 1,617,086.40 and 279,279.20 is: 418,920.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,078,054.40 : 1,617,086.40 = 279,279.20 : x
  2. Step 2: Convert to fraction form
    1,078,054.40/1,617,086.40 = 279,279.20/x
  3. Step 3: Cross multiply
    1,078,054.40x = 1,617,086.40 × 279,279.20
  4. Step 4: Simplify right side
    1,078,054.40x = 451,618,596,122.88
  5. Step 5: Solve for x
    x = 451,618,596,122.88/1,078,054.40
  6. Step 6: Final answer
    x = 418,920.04

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Double scale
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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.