Home / 1,189,885.48-1,642,032.88-646,010.48

Finding the Fourth Proportional to 1,189,885.48, 1,642,032.88 and 646,010.48

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Solution

The fourth proportional to 1,189,885.48, 1,642,032.88 and 646,010.48 is: 891,489.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,189,885.48 : 1,642,032.88 = 646,010.48 : x
  2. Step 2: Convert to fraction form
    1,189,885.48/1,642,032.88 = 646,010.48/x
  3. Step 3: Cross multiply
    1,189,885.48x = 1,642,032.88 × 646,010.48
  4. Step 4: Simplify right side
    1,189,885.48x = 1,060,770,448,984.58
  5. Step 5: Solve for x
    x = 1,060,770,448,984.58/1,189,885.48
  6. Step 6: Final answer
    x = 891,489.53

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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.