Home / 1,222,212.89-1,686,739.04-808,030.07

Finding the Fourth Proportional to 1,222,212.89, 1,686,739.04 and 808,030.07

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Solution

The fourth proportional to 1,222,212.89, 1,686,739.04 and 808,030.07 is: 1,115,137.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,212.89 : 1,686,739.04 = 808,030.07 : x
  2. Step 2: Convert to fraction form
    1,222,212.89/1,686,739.04 = 808,030.07/x
  3. Step 3: Cross multiply
    1,222,212.89x = 1,686,739.04 × 808,030.07
  4. Step 4: Simplify right side
    1,222,212.89x = 1,362,935,852,089.09
  5. Step 5: Solve for x
    x = 1,362,935,852,089.09/1,222,212.89
  6. Step 6: Final answer
    x = 1,115,137.85

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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.