Home / 1,325,515.50-1,986,419.89-716,990.18

Finding the Fourth Proportional to 1,325,515.50, 1,986,419.89 and 716,990.18

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Solution

The fourth proportional to 1,325,515.50, 1,986,419.89 and 716,990.18 is: 1,074,482.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,325,515.50 : 1,986,419.89 = 716,990.18 : x
  2. Step 2: Convert to fraction form
    1,325,515.50/1,986,419.89 = 716,990.18/x
  3. Step 3: Cross multiply
    1,325,515.50x = 1,986,419.89 × 716,990.18
  4. Step 4: Simplify right side
    1,325,515.50x = 1,424,243,557,884.68
  5. Step 5: Solve for x
    x = 1,424,243,557,884.68/1,325,515.50
  6. Step 6: Final answer
    x = 1,074,482.77

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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.