Home / 1,317,971.25-1,976,956.88-320,699.25

Finding the Fourth Proportional to 1,317,971.25, 1,976,956.88 and 320,699.25

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Solution

The fourth proportional to 1,317,971.25, 1,976,956.88 and 320,699.25 is: 481,048.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,317,971.25 : 1,976,956.88 = 320,699.25 : x
  2. Step 2: Convert to fraction form
    1,317,971.25/1,976,956.88 = 320,699.25/x
  3. Step 3: Cross multiply
    1,317,971.25x = 1,976,956.88 × 320,699.25
  4. Step 4: Simplify right side
    1,317,971.25x = 634,008,587,094.84
  5. Step 5: Solve for x
    x = 634,008,587,094.84/1,317,971.25
  6. Step 6: Final answer
    x = 481,048.88

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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.