Finding the Fourth Proportional to 987,967.44, 1,363,396.41 and 535,258.44
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Solution
The fourth proportional to 987,967.44, 1,363,396.41 and 535,258.44 is: 738,657.37
Step by Step Solution
- Step 1: Write the proportion equation
987,967.44 : 1,363,396.41 = 535,258.44 : x - Step 2: Convert to fraction form
987,967.44/1,363,396.41 = 535,258.44/x - Step 3: Cross multiply
987,967.44x = 1,363,396.41 × 535,258.44 - Step 4: Simplify right side
987,967.44x = 729,769,435,518.20 - Step 5: Solve for x
x = 729,769,435,518.20/987,967.44 - Step 6: Final answer
x = 738,657.37
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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.