Finding the Fourth Proportional to 786,129.74, 1,084,862.70 and 446,616.62
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Solution
The fourth proportional to 786,129.74, 1,084,862.70 and 446,616.62 is: 616,333.01
Step by Step Solution
- Step 1: Write the proportion equation
786,129.74 : 1,084,862.70 = 446,616.62 : x - Step 2: Convert to fraction form
786,129.74/1,084,862.70 = 446,616.62/x - Step 3: Cross multiply
786,129.74x = 1,084,862.70 × 446,616.62 - Step 4: Simplify right side
786,129.74x = 484,517,712,238.07 - Step 5: Solve for x
x = 484,517,712,238.07/786,129.74 - Step 6: Final answer
x = 616,333.01
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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.