Finding the Fourth Proportional to 859,539.09, 1,186,195.95 and 515,431.04
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Solution
The fourth proportional to 859,539.09, 1,186,195.95 and 515,431.04 is: 711,314.03
Step by Step Solution
- Step 1: Write the proportion equation
859,539.09 : 1,186,195.95 = 515,431.04 : x - Step 2: Convert to fraction form
859,539.09/1,186,195.95 = 515,431.04/x - Step 3: Cross multiply
859,539.09x = 1,186,195.95 × 515,431.04 - Step 4: Simplify right side
859,539.09x = 611,402,212,152.29 - Step 5: Solve for x
x = 611,402,212,152.29/859,539.09 - Step 6: Final answer
x = 711,314.03
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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.