Home / 1,210,055.73-1,669,813.52-666,085.28

Finding the Fourth Proportional to 1,210,055.73, 1,669,813.52 and 666,085.28

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Solution

The fourth proportional to 1,210,055.73, 1,669,813.52 and 666,085.28 is: 919,162.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,210,055.73 : 1,669,813.52 = 666,085.28 : x
  2. Step 2: Convert to fraction form
    1,210,055.73/1,669,813.52 = 666,085.28/x
  3. Step 3: Cross multiply
    1,210,055.73x = 1,669,813.52 × 666,085.28
  4. Step 4: Simplify right side
    1,210,055.73x = 1,112,238,194,337.49
  5. Step 5: Solve for x
    x = 1,112,238,194,337.49/1,210,055.73
  6. Step 6: Final answer
    x = 919,162.79

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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.