Home / 1,262,740.28-1,742,619.77-689,817.35

Finding the Fourth Proportional to 1,262,740.28, 1,742,619.77 and 689,817.35

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Solution

The fourth proportional to 1,262,740.28, 1,742,619.77 and 689,817.35 is: 951,968.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,740.28 : 1,742,619.77 = 689,817.35 : x
  2. Step 2: Convert to fraction form
    1,262,740.28/1,742,619.77 = 689,817.35/x
  3. Step 3: Cross multiply
    1,262,740.28x = 1,742,619.77 × 689,817.35
  4. Step 4: Simplify right side
    1,262,740.28x = 1,202,089,339,636.82
  5. Step 5: Solve for x
    x = 1,202,089,339,636.82/1,262,740.28
  6. Step 6: Final answer
    x = 951,968.80

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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.