Home / 1,262,778.84-1,742,612.94-689,804.28

Finding the Fourth Proportional to 1,262,778.84, 1,742,612.94 and 689,804.28

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Solution

The fourth proportional to 1,262,778.84, 1,742,612.94 and 689,804.28 is: 951,917.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,778.84 : 1,742,612.94 = 689,804.28 : x
  2. Step 2: Convert to fraction form
    1,262,778.84/1,742,612.94 = 689,804.28/x
  3. Step 3: Cross multiply
    1,262,778.84x = 1,742,612.94 × 689,804.28
  4. Step 4: Simplify right side
    1,262,778.84x = 1,202,061,864,395.38
  5. Step 5: Solve for x
    x = 1,202,061,864,395.38/1,262,778.84
  6. Step 6: Final answer
    x = 951,917.97

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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.