Home / 806,788.21-1,209,430.54-273,944.79

Finding the Fourth Proportional to 806,788.21, 1,209,430.54 and 273,944.79

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Solution

The fourth proportional to 806,788.21, 1,209,430.54 and 273,944.79 is: 410,661.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,788.21 : 1,209,430.54 = 273,944.79 : x
  2. Step 2: Convert to fraction form
    806,788.21/1,209,430.54 = 273,944.79/x
  3. Step 3: Cross multiply
    806,788.21x = 1,209,430.54 × 273,944.79
  4. Step 4: Simplify right side
    806,788.21x = 331,317,195,299.89
  5. Step 5: Solve for x
    x = 331,317,195,299.89/806,788.21
  6. Step 6: Final answer
    x = 410,661.92

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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.