Home / 1,214,255.70-1,821,383.55-372,806.10

Finding the Fourth Proportional to 1,214,255.70, 1,821,383.55 and 372,806.10

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Solution

The fourth proportional to 1,214,255.70, 1,821,383.55 and 372,806.10 is: 559,209.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,255.70 : 1,821,383.55 = 372,806.10 : x
  2. Step 2: Convert to fraction form
    1,214,255.70/1,821,383.55 = 372,806.10/x
  3. Step 3: Cross multiply
    1,214,255.70x = 1,821,383.55 × 372,806.10
  4. Step 4: Simplify right side
    1,214,255.70x = 679,022,897,879.66
  5. Step 5: Solve for x
    x = 679,022,897,879.66/1,214,255.70
  6. Step 6: Final answer
    x = 559,209.15

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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.