Home / 1,210,049.09-1,669,804.36-666,078.63

Finding the Fourth Proportional to 1,210,049.09, 1,669,804.36 and 666,078.63

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Solution

The fourth proportional to 1,210,049.09, 1,669,804.36 and 666,078.63 is: 919,153.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,049.09 : 1,669,804.36 = 666,078.63 : x
  2. Step 2: Convert to fraction form
    1,210,049.09/1,669,804.36 = 666,078.63/x
  3. Step 3: Cross multiply
    1,210,049.09x = 1,669,804.36 × 666,078.63
  4. Step 4: Simplify right side
    1,210,049.09x = 1,112,221,003,191.41
  5. Step 5: Solve for x
    x = 1,112,221,003,191.41/1,210,049.09
  6. Step 6: Final answer
    x = 919,153.62

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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.