Home / 1,264,738.39-1,896,967.82-318,109.47

Finding the Fourth Proportional to 1,264,738.39, 1,896,967.82 and 318,109.47

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Solution

The fourth proportional to 1,264,738.39, 1,896,967.82 and 318,109.47 is: 477,129.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,264,738.39 : 1,896,967.82 = 318,109.47 : x
  2. Step 2: Convert to fraction form
    1,264,738.39/1,896,967.82 = 318,109.47/x
  3. Step 3: Cross multiply
    1,264,738.39x = 1,896,967.82 × 318,109.47
  4. Step 4: Simplify right side
    1,264,738.39x = 603,443,416,751.87
  5. Step 5: Solve for x
    x = 603,443,416,751.87/1,264,738.39
  6. Step 6: Final answer
    x = 477,129.04

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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.