Home / 1,079,279.42-1,618,636.95-320,916.65

Finding the Fourth Proportional to 1,079,279.42, 1,618,636.95 and 320,916.65

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Solution

The fourth proportional to 1,079,279.42, 1,618,636.95 and 320,916.65 is: 481,291.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,079,279.42 : 1,618,636.95 = 320,916.65 : x
  2. Step 2: Convert to fraction form
    1,079,279.42/1,618,636.95 = 320,916.65/x
  3. Step 3: Cross multiply
    1,079,279.42x = 1,618,636.95 × 320,916.65
  4. Step 4: Simplify right side
    1,079,279.42x = 519,447,539,467.03
  5. Step 5: Solve for x
    x = 519,447,539,467.03/1,079,279.42
  6. Step 6: Final answer
    x = 481,291.07

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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.