Finding the Fourth Proportional to 987,913.22, 1,363,311.69 and 535,203.14
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Solution
The fourth proportional to 987,913.22, 1,363,311.69 and 535,203.14 is: 738,575.70
Step by Step Solution
- Step 1: Write the proportion equation
987,913.22 : 1,363,311.69 = 535,203.14 : x - Step 2: Convert to fraction form
987,913.22/1,363,311.69 = 535,203.14/x - Step 3: Cross multiply
987,913.22x = 1,363,311.69 × 535,203.14 - Step 4: Simplify right side
987,913.22x = 729,648,697,286.71 - Step 5: Solve for x
x = 729,648,697,286.71/987,913.22 - Step 6: Final answer
x = 738,575.70
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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.