Home / 1,389,138.56-2,083,788.48-536,215.04

Finding the Fourth Proportional to 1,389,138.56, 2,083,788.48 and 536,215.04

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Solution

The fourth proportional to 1,389,138.56, 2,083,788.48 and 536,215.04 is: 804,353.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,389,138.56 : 2,083,788.48 = 536,215.04 : x
  2. Step 2: Convert to fraction form
    1,389,138.56/2,083,788.48 = 536,215.04/x
  3. Step 3: Cross multiply
    1,389,138.56x = 2,083,788.48 × 536,215.04
  4. Step 4: Simplify right side
    1,389,138.56x = 1,117,358,723,154.74
  5. Step 5: Solve for x
    x = 1,117,358,723,154.74/1,389,138.56
  6. Step 6: Final answer
    x = 804,353.69

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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.