Home / 1,379,743.23-2,069,615.42-620,698.11

Finding the Fourth Proportional to 1,379,743.23, 2,069,615.42 and 620,698.11

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Solution

The fourth proportional to 1,379,743.23, 2,069,615.42 and 620,698.11 is: 931,047.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,379,743.23 : 2,069,615.42 = 620,698.11 : x
  2. Step 2: Convert to fraction form
    1,379,743.23/2,069,615.42 = 620,698.11/x
  3. Step 3: Cross multiply
    1,379,743.23x = 2,069,615.42 × 620,698.11
  4. Step 4: Simplify right side
    1,379,743.23x = 1,284,606,374,575.35
  5. Step 5: Solve for x
    x = 1,284,606,374,575.35/1,379,743.23
  6. Step 6: Final answer
    x = 931,047.42

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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.