Home / 1,263,009.84-1,742,862.60-689,928.36

Finding the Fourth Proportional to 1,263,009.84, 1,742,862.60 and 689,928.36

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Solution

The fourth proportional to 1,263,009.84, 1,742,862.60 and 689,928.36 is: 952,051.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,263,009.84 : 1,742,862.60 = 689,928.36 : x
  2. Step 2: Convert to fraction form
    1,263,009.84/1,742,862.60 = 689,928.36/x
  3. Step 3: Cross multiply
    1,263,009.84x = 1,742,862.60 × 689,928.36
  4. Step 4: Simplify right side
    1,263,009.84x = 1,202,450,335,323.34
  5. Step 5: Solve for x
    x = 1,202,450,335,323.34/1,263,009.84
  6. Step 6: Final answer
    x = 952,051.44

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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.