Home / 742,540.64-1,111,926.84-622,281.44

Finding the Fourth Proportional to 742,540.64, 1,111,926.84 and 622,281.44

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Solution

The fourth proportional to 742,540.64, 1,111,926.84 and 622,281.44 is: 931,843.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    742,540.64 : 1,111,926.84 = 622,281.44 : x
  2. Step 2: Convert to fraction form
    742,540.64/1,111,926.84 = 622,281.44/x
  3. Step 3: Cross multiply
    742,540.64x = 1,111,926.84 × 622,281.44
  4. Step 4: Simplify right side
    742,540.64x = 691,931,435,169.85
  5. Step 5: Solve for x
    x = 691,931,435,169.85/742,540.64
  6. Step 6: Final answer
    x = 931,843.19

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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.