Finding the Fourth Proportional to 986,316.40, 1,361,188.56 and 556,634.08
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Solution
The fourth proportional to 986,316.40, 1,361,188.56 and 556,634.08 is: 768,195.62
Step by Step Solution
- Step 1: Write the proportion equation
986,316.40 : 1,361,188.56 = 556,634.08 : x - Step 2: Convert to fraction form
986,316.40/1,361,188.56 = 556,634.08/x - Step 3: Cross multiply
986,316.40x = 1,361,188.56 × 556,634.08 - Step 4: Simplify right side
986,316.40x = 757,683,941,802.13 - Step 5: Solve for x
x = 757,683,941,802.13/986,316.40 - Step 6: Final answer
x = 768,195.62
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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.