Home / 742,636.37-1,112,956.74-405,171.34

Finding the Fourth Proportional to 742,636.37, 1,112,956.74 and 405,171.34

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Solution

The fourth proportional to 742,636.37, 1,112,956.74 and 405,171.34 is: 607,212.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,636.37 : 1,112,956.74 = 405,171.34 : x
  2. Step 2: Convert to fraction form
    742,636.37/1,112,956.74 = 405,171.34/x
  3. Step 3: Cross multiply
    742,636.37x = 1,112,956.74 × 405,171.34
  4. Step 4: Simplify right side
    742,636.37x = 450,938,170,925.44
  5. Step 5: Solve for x
    x = 450,938,170,925.44/742,636.37
  6. Step 6: Final answer
    x = 607,212.61

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.