Home / 884,151.52-1,220,112.66-491,708.56

Finding the Fourth Proportional to 884,151.52, 1,220,112.66 and 491,708.56

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Solution

The fourth proportional to 884,151.52, 1,220,112.66 and 491,708.56 is: 678,548.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    884,151.52 : 1,220,112.66 = 491,708.56 : x
  2. Step 2: Convert to fraction form
    884,151.52/1,220,112.66 = 491,708.56/x
  3. Step 3: Cross multiply
    884,151.52x = 1,220,112.66 × 491,708.56
  4. Step 4: Simplify right side
    884,151.52x = 599,939,839,086.37
  5. Step 5: Solve for x
    x = 599,939,839,086.37/884,151.52
  6. Step 6: Final answer
    x = 678,548.67

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.