Home / 989,131.36-1,483,794.64-279,165.52

Finding the Fourth Proportional to 989,131.36, 1,483,794.64 and 279,165.52

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Solution

The fourth proportional to 989,131.36, 1,483,794.64 and 279,165.52 is: 418,775.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    989,131.36 : 1,483,794.64 = 279,165.52 : x
  2. Step 2: Convert to fraction form
    989,131.36/1,483,794.64 = 279,165.52/x
  3. Step 3: Cross multiply
    989,131.36x = 1,483,794.64 × 279,165.52
  4. Step 4: Simplify right side
    989,131.36x = 414,224,302,248.81
  5. Step 5: Solve for x
    x = 414,224,302,248.81/989,131.36
  6. Step 6: Final answer
    x = 418,775.83

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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.