Finding the Fourth Proportional to 843,643.20, 1,265,464.80 and 282,677.70
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Solution
The fourth proportional to 843,643.20, 1,265,464.80 and 282,677.70 is: 424,016.55
Step by Step Solution
- Step 1: Write the proportion equation
843,643.20 : 1,265,464.80 = 282,677.70 : x - Step 2: Convert to fraction form
843,643.20/1,265,464.80 = 282,677.70/x - Step 3: Cross multiply
843,643.20x = 1,265,464.80 × 282,677.70 - Step 4: Simplify right side
843,643.20x = 357,718,679,094.96 - Step 5: Solve for x
x = 357,718,679,094.96/843,643.20 - Step 6: Final answer
x = 424,016.55
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.