Home / 1,515,114.21-2,089,162.23-1,238,609.07

Finding the Fourth Proportional to 1,515,114.21, 2,089,162.23 and 1,238,609.07

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Solution

The fourth proportional to 1,515,114.21, 2,089,162.23 and 1,238,609.07 is: 1,707,894.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,114.21 : 2,089,162.23 = 1,238,609.07 : x
  2. Step 2: Convert to fraction form
    1,515,114.21/2,089,162.23 = 1,238,609.07/x
  3. Step 3: Cross multiply
    1,515,114.21x = 2,089,162.23 × 1,238,609.07
  4. Step 4: Simplify right side
    1,515,114.21x = 2,587,655,286,779.43
  5. Step 5: Solve for x
    x = 2,587,655,286,779.43/1,515,114.21
  6. Step 6: Final answer
    x = 1,707,894.54

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1.5x scale

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.