Home / 1,430.55-2,144.43-609.03

Finding the Fourth Proportional to 1,430.55, 2,144.43 and 609.03

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Solution

The fourth proportional to 1,430.55, 2,144.43 and 609.03 is: 912.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,430.55 : 2,144.43 = 609.03 : x
  2. Step 2: Convert to fraction form
    1,430.55/2,144.43 = 609.03/x
  3. Step 3: Cross multiply
    1,430.55x = 2,144.43 × 609.03
  4. Step 4: Simplify right side
    1,430.55x = 1,306,022.20
  5. Step 5: Solve for x
    x = 1,306,022.20/1,430.55
  6. Step 6: Final answer
    x = 912.95

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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.