Home / 1,289,723.20-1,934,584.80-1,165,720.30

Finding the Fourth Proportional to 1,289,723.20, 1,934,584.80 and 1,165,720.30

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Solution

The fourth proportional to 1,289,723.20, 1,934,584.80 and 1,165,720.30 is: 1,748,580.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,289,723.20 : 1,934,584.80 = 1,165,720.30 : x
  2. Step 2: Convert to fraction form
    1,289,723.20/1,934,584.80 = 1,165,720.30/x
  3. Step 3: Cross multiply
    1,289,723.20x = 1,934,584.80 × 1,165,720.30
  4. Step 4: Simplify right side
    1,289,723.20x = 2,255,184,773,431.44
  5. Step 5: Solve for x
    x = 2,255,184,773,431.44/1,289,723.20
  6. Step 6: Final answer
    x = 1,748,580.45

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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.