Finding the Fourth Proportional to 709,593.76, 979,089.54 and 451,376.68
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Solution
The fourth proportional to 709,593.76, 979,089.54 and 451,376.68 is: 622,804.50
Step by Step Solution
- Step 1: Write the proportion equation
709,593.76 : 979,089.54 = 451,376.68 : x - Step 2: Convert to fraction form
709,593.76/979,089.54 = 451,376.68/x - Step 3: Cross multiply
709,593.76x = 979,089.54 × 451,376.68 - Step 4: Simplify right side
709,593.76x = 441,938,185,987.93 - Step 5: Solve for x
x = 441,938,185,987.93/709,593.76 - Step 6: Final answer
x = 622,804.50
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.