Finding the Fourth Proportional to 987,766.74, 1,363,118.13 and 535,057.74
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Solution
The fourth proportional to 987,766.74, 1,363,118.13 and 535,057.74 is: 738,379.70
Step by Step Solution
- Step 1: Write the proportion equation
987,766.74 : 1,363,118.13 = 535,057.74 : x - Step 2: Convert to fraction form
987,766.74/1,363,118.13 = 535,057.74/x - Step 3: Cross multiply
987,766.74x = 1,363,118.13 × 535,057.74 - Step 4: Simplify right side
987,766.74x = 729,346,905,990.83 - Step 5: Solve for x
x = 729,346,905,990.83/987,766.74 - Step 6: Final answer
x = 738,379.70
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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.