Finding the Fourth Proportional to 986,528.16, 1,361,409.12 and 533,818.08
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Solution
The fourth proportional to 986,528.16, 1,361,409.12 and 533,818.08 is: 736,669.09
Step by Step Solution
- Step 1: Write the proportion equation
986,528.16 : 1,361,409.12 = 533,818.08 : x - Step 2: Convert to fraction form
986,528.16/1,361,409.12 = 533,818.08/x - Step 3: Cross multiply
986,528.16x = 1,361,409.12 × 533,818.08 - Step 4: Simplify right side
986,528.16x = 726,744,802,532.89 - Step 5: Solve for x
x = 726,744,802,532.89/986,528.16 - Step 6: Final answer
x = 736,669.09
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1.5x scale
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.