Finding the Fourth Proportional to 986,623.74, 1,361,511.99 and 556,943.85
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Solution
The fourth proportional to 986,623.74, 1,361,511.99 and 556,943.85 is: 768,566.27
Step by Step Solution
- Step 1: Write the proportion equation
986,623.74 : 1,361,511.99 = 556,943.85 : x - Step 2: Convert to fraction form
986,623.74/1,361,511.99 = 556,943.85/x - Step 3: Cross multiply
986,623.74x = 1,361,511.99 × 556,943.85 - Step 4: Simplify right side
986,623.74x = 758,285,729,531.76 - Step 5: Solve for x
x = 758,285,729,531.76/986,623.74 - Step 6: Final answer
x = 768,566.27
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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.