Home / 4,678,766.88-7,018,819.79-1,440,578.53

Finding the Fourth Proportional to 4,678,766.88, 7,018,819.79 and 1,440,578.53

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Solution

The fourth proportional to 4,678,766.88, 7,018,819.79 and 1,440,578.53 is: 2,161,073.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,678,766.88 : 7,018,819.79 = 1,440,578.53 : x
  2. Step 2: Convert to fraction form
    4,678,766.88/7,018,819.79 = 1,440,578.53/x
  3. Step 3: Cross multiply
    4,678,766.88x = 7,018,819.79 × 1,440,578.53
  4. Step 4: Simplify right side
    4,678,766.88x = 10,111,161,129,721.89
  5. Step 5: Solve for x
    x = 10,111,161,129,721.89/4,678,766.88
  6. Step 6: Final answer
    x = 2,161,073.93

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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.