Finding the Fourth Proportional to 492,699.24, 680,109.84 and 322,944.30
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Solution
The fourth proportional to 492,699.24, 680,109.84 and 322,944.30 is: 445,784.32
Step by Step Solution
- Step 1: Write the proportion equation
492,699.24 : 680,109.84 = 322,944.30 : x - Step 2: Convert to fraction form
492,699.24/680,109.84 = 322,944.30/x - Step 3: Cross multiply
492,699.24x = 680,109.84 × 322,944.30 - Step 4: Simplify right side
492,699.24x = 219,637,596,201.91 - Step 5: Solve for x
x = 219,637,596,201.91/492,699.24 - Step 6: Final answer
x = 445,784.32
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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.