Home / 1,375,696.47-1,898,368.60-763,817.61

Finding the Fourth Proportional to 1,375,696.47, 1,898,368.60 and 763,817.61

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Solution

The fourth proportional to 1,375,696.47, 1,898,368.60 and 763,817.61 is: 1,054,016.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,375,696.47 : 1,898,368.60 = 763,817.61 : x
  2. Step 2: Convert to fraction form
    1,375,696.47/1,898,368.60 = 763,817.61/x
  3. Step 3: Cross multiply
    1,375,696.47x = 1,898,368.60 × 763,817.61
  4. Step 4: Simplify right side
    1,375,696.47x = 1,450,007,366,951.05
  5. Step 5: Solve for x
    x = 1,450,007,366,951.05/1,375,696.47
  6. Step 6: Final answer
    x = 1,054,016.93

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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.