Home / 1,112,088.79-1,668,133.34-270,640.54

Finding the Fourth Proportional to 1,112,088.79, 1,668,133.34 and 270,640.54

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Solution

The fourth proportional to 1,112,088.79, 1,668,133.34 and 270,640.54 is: 405,960.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,088.79 : 1,668,133.34 = 270,640.54 : x
  2. Step 2: Convert to fraction form
    1,112,088.79/1,668,133.34 = 270,640.54/x
  3. Step 3: Cross multiply
    1,112,088.79x = 1,668,133.34 × 270,640.54
  4. Step 4: Simplify right side
    1,112,088.79x = 451,464,509,676.47
  5. Step 5: Solve for x
    x = 451,464,509,676.47/1,112,088.79
  6. Step 6: Final answer
    x = 405,960.85

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Double scale
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1.5x scale

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.