Home / 1,319,886.21-1,821,442.97-716,274.21

Finding the Fourth Proportional to 1,319,886.21, 1,821,442.97 and 716,274.21

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Solution

The fourth proportional to 1,319,886.21, 1,821,442.97 and 716,274.21 is: 988,458.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,886.21 : 1,821,442.97 = 716,274.21 : x
  2. Step 2: Convert to fraction form
    1,319,886.21/1,821,442.97 = 716,274.21/x
  3. Step 3: Cross multiply
    1,319,886.21x = 1,821,442.97 × 716,274.21
  4. Step 4: Simplify right side
    1,319,886.21x = 1,304,652,624,396.80
  5. Step 5: Solve for x
    x = 1,304,652,624,396.80/1,319,886.21
  6. Step 6: Final answer
    x = 988,458.41

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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.