Home / 1,319,885.21-1,821,441.59-716,273.21

Finding the Fourth Proportional to 1,319,885.21, 1,821,441.59 and 716,273.21

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Solution

The fourth proportional to 1,319,885.21, 1,821,441.59 and 716,273.21 is: 988,457.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,319,885.21 : 1,821,441.59 = 716,273.21 : x
  2. Step 2: Convert to fraction form
    1,319,885.21/1,821,441.59 = 716,273.21/x
  3. Step 3: Cross multiply
    1,319,885.21x = 1,821,441.59 × 716,273.21
  4. Step 4: Simplify right side
    1,319,885.21x = 1,304,649,807,180.28
  5. Step 5: Solve for x
    x = 1,304,649,807,180.28/1,319,885.21
  6. Step 6: Final answer
    x = 988,457.03

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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.