Home / 818,696.22-1,227,012.33-438,674.46

Finding the Fourth Proportional to 818,696.22, 1,227,012.33 and 438,674.46

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Solution

The fourth proportional to 818,696.22, 1,227,012.33 and 438,674.46 is: 657,458.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    818,696.22 : 1,227,012.33 = 438,674.46 : x
  2. Step 2: Convert to fraction form
    818,696.22/1,227,012.33 = 438,674.46/x
  3. Step 3: Cross multiply
    818,696.22x = 1,227,012.33 × 438,674.46
  4. Step 4: Simplify right side
    818,696.22x = 538,258,971,276.09
  5. Step 5: Solve for x
    x = 538,258,971,276.09/818,696.22
  6. Step 6: Final answer
    x = 657,458.72

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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.