Finding the Fourth Proportional to 986,612.13, 1,361,524.73 and 533,903.13
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Solution
The fourth proportional to 986,612.13, 1,361,524.73 and 533,903.13 is: 736,786.31
Step by Step Solution
- Step 1: Write the proportion equation
986,612.13 : 1,361,524.73 = 533,903.13 : x - Step 2: Convert to fraction form
986,612.13/1,361,524.73 = 533,903.13/x - Step 3: Cross multiply
986,612.13x = 1,361,524.73 × 533,903.13 - Step 4: Simplify right side
986,612.13x = 726,922,314,919.41 - Step 5: Solve for x
x = 726,922,314,919.41/986,612.13 - Step 6: Final answer
x = 736,786.31
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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.