Finding the Fourth Proportional to 832,679.36, 1,149,119.84 and 505,881.12
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Solution
The fourth proportional to 832,679.36, 1,149,119.84 and 505,881.12 is: 698,129.51
Step by Step Solution
- Step 1: Write the proportion equation
832,679.36 : 1,149,119.84 = 505,881.12 : x - Step 2: Convert to fraction form
832,679.36/1,149,119.84 = 505,881.12/x - Step 3: Cross multiply
832,679.36x = 1,149,119.84 × 505,881.12 - Step 4: Simplify right side
832,679.36x = 581,318,031,673.42 - Step 5: Solve for x
x = 581,318,031,673.42/832,679.36 - Step 6: Final answer
x = 698,129.51
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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.