Home / 1,137,984.48-1,707,230.97-428,018.67

Finding the Fourth Proportional to 1,137,984.48, 1,707,230.97 and 428,018.67

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Solution

The fourth proportional to 1,137,984.48, 1,707,230.97 and 428,018.67 is: 642,123.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,137,984.48 : 1,707,230.97 = 428,018.67 : x
  2. Step 2: Convert to fraction form
    1,137,984.48/1,707,230.97 = 428,018.67/x
  3. Step 3: Cross multiply
    1,137,984.48x = 1,707,230.97 × 428,018.67
  4. Step 4: Simplify right side
    1,137,984.48x = 730,726,729,162.21
  5. Step 5: Solve for x
    x = 730,726,729,162.21/1,137,984.48
  6. Step 6: Final answer
    x = 642,123.63

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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.