Home / 1,212,632.13-1,673,144.63-689,301.67

Finding the Fourth Proportional to 1,212,632.13, 1,673,144.63 and 689,301.67

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Solution

The fourth proportional to 1,212,632.13, 1,673,144.63 and 689,301.67 is: 951,072.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,212,632.13 : 1,673,144.63 = 689,301.67 : x
  2. Step 2: Convert to fraction form
    1,212,632.13/1,673,144.63 = 689,301.67/x
  3. Step 3: Cross multiply
    1,212,632.13x = 1,673,144.63 × 689,301.67
  4. Step 4: Simplify right side
    1,212,632.13x = 1,153,301,387,610.53
  5. Step 5: Solve for x
    x = 1,153,301,387,610.53/1,212,632.13
  6. Step 6: Final answer
    x = 951,072.76

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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.