Home / 1,190,144.80-1,642,394.48-646,276.16

Finding the Fourth Proportional to 1,190,144.80, 1,642,394.48 and 646,276.16

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Solution

The fourth proportional to 1,190,144.80, 1,642,394.48 and 646,276.16 is: 891,858.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,144.80 : 1,642,394.48 = 646,276.16 : x
  2. Step 2: Convert to fraction form
    1,190,144.80/1,642,394.48 = 646,276.16/x
  3. Step 3: Cross multiply
    1,190,144.80x = 1,642,394.48 × 646,276.16
  4. Step 4: Simplify right side
    1,190,144.80x = 1,061,440,397,739.60
  5. Step 5: Solve for x
    x = 1,061,440,397,739.60/1,190,144.80
  6. Step 6: Final answer
    x = 891,858.20

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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.