Home / 1,112,090.70-1,534,547.79-789,683.16

Finding the Fourth Proportional to 1,112,090.70, 1,534,547.79 and 789,683.16

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Solution

The fourth proportional to 1,112,090.70, 1,534,547.79 and 789,683.16 is: 1,089,665.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,112,090.70 : 1,534,547.79 = 789,683.16 : x
  2. Step 2: Convert to fraction form
    1,112,090.70/1,534,547.79 = 789,683.16/x
  3. Step 3: Cross multiply
    1,112,090.70x = 1,534,547.79 × 789,683.16
  4. Step 4: Simplify right side
    1,112,090.70x = 1,211,806,547,978.22
  5. Step 5: Solve for x
    x = 1,211,806,547,978.22/1,112,090.70
  6. Step 6: Final answer
    x = 1,089,665.21

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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.