Home / 1,253,368.49-1,729,466.03-716,720.81

Finding the Fourth Proportional to 1,253,368.49, 1,729,466.03 and 716,720.81

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Solution

The fourth proportional to 1,253,368.49, 1,729,466.03 and 716,720.81 is: 988,970.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,253,368.49 : 1,729,466.03 = 716,720.81 : x
  2. Step 2: Convert to fraction form
    1,253,368.49/1,729,466.03 = 716,720.81/x
  3. Step 3: Cross multiply
    1,253,368.49x = 1,729,466.03 × 716,720.81
  4. Step 4: Simplify right side
    1,253,368.49x = 1,239,544,287,033.56
  5. Step 5: Solve for x
    x = 1,239,544,287,033.56/1,253,368.49
  6. Step 6: Final answer
    x = 988,970.36

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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.