Home / 809,708.12-1,213,749.34-276,864.74

Finding the Fourth Proportional to 809,708.12, 1,213,749.34 and 276,864.74

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Solution

The fourth proportional to 809,708.12, 1,213,749.34 and 276,864.74 is: 415,019.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    809,708.12 : 1,213,749.34 = 276,864.74 : x
  2. Step 2: Convert to fraction form
    809,708.12/1,213,749.34 = 276,864.74/x
  3. Step 3: Cross multiply
    809,708.12x = 1,213,749.34 × 276,864.74
  4. Step 4: Simplify right side
    809,708.12x = 336,044,395,444.27
  5. Step 5: Solve for x
    x = 336,044,395,444.27/809,708.12
  6. Step 6: Final answer
    x = 415,019.17

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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.