Finding the Fourth Proportional to 902,976.84, 1,245,932.56 and 535,386.05
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Solution
The fourth proportional to 902,976.84, 1,245,932.56 and 535,386.05 is: 738,728.71
Step by Step Solution
- Step 1: Write the proportion equation
902,976.84 : 1,245,932.56 = 535,386.05 : x - Step 2: Convert to fraction form
902,976.84/1,245,932.56 = 535,386.05/x - Step 3: Cross multiply
902,976.84x = 1,245,932.56 × 535,386.05 - Step 4: Simplify right side
902,976.84x = 667,054,919,867.18 - Step 5: Solve for x
x = 667,054,919,867.18/902,976.84 - Step 6: Final answer
x = 738,728.71
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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.