Home / 989,134.90-1,483,556.55-279,234.70

Finding the Fourth Proportional to 989,134.90, 1,483,556.55 and 279,234.70

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Solution

The fourth proportional to 989,134.90, 1,483,556.55 and 279,234.70 is: 418,810.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,134.90 : 1,483,556.55 = 279,234.70 : x
  2. Step 2: Convert to fraction form
    989,134.90/1,483,556.55 = 279,234.70/x
  3. Step 3: Cross multiply
    989,134.90x = 1,483,556.55 × 279,234.70
  4. Step 4: Simplify right side
    989,134.90x = 414,260,468,172.29
  5. Step 5: Solve for x
    x = 414,260,468,172.29/989,134.90
  6. Step 6: Final answer
    x = 418,810.89

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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.