Home / 1,190,007.45-1,642,212.23-646,144.29

Finding the Fourth Proportional to 1,190,007.45, 1,642,212.23 and 646,144.29

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Solution

The fourth proportional to 1,190,007.45, 1,642,212.23 and 646,144.29 is: 891,680.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,190,007.45 : 1,642,212.23 = 646,144.29 : x
  2. Step 2: Convert to fraction form
    1,190,007.45/1,642,212.23 = 646,144.29/x
  3. Step 3: Cross multiply
    1,190,007.45x = 1,642,212.23 × 646,144.29
  4. Step 4: Simplify right side
    1,190,007.45x = 1,061,106,052,151.95
  5. Step 5: Solve for x
    x = 1,061,106,052,151.95/1,190,007.45
  6. Step 6: Final answer
    x = 891,680.18

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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.