Finding the Fourth Proportional to 868,143.96, 1,197,972.18 and 486,118.80
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Solution
The fourth proportional to 868,143.96, 1,197,972.18 and 486,118.80 is: 670,806.72
Step by Step Solution
- Step 1: Write the proportion equation
868,143.96 : 1,197,972.18 = 486,118.80 : x - Step 2: Convert to fraction form
868,143.96/1,197,972.18 = 486,118.80/x - Step 3: Cross multiply
868,143.96x = 1,197,972.18 × 486,118.80 - Step 4: Simplify right side
868,143.96x = 582,356,798,574.98 - Step 5: Solve for x
x = 582,356,798,574.98/868,143.96 - Step 6: Final answer
x = 670,806.72
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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.