Finding the Fourth Proportional to 986,612.75, 1,361,525.60 and 533,903.75
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Solution
The fourth proportional to 986,612.75, 1,361,525.60 and 533,903.75 is: 736,787.18
Step by Step Solution
- Step 1: Write the proportion equation
986,612.75 : 1,361,525.60 = 533,903.75 : x - Step 2: Convert to fraction form
986,612.75/1,361,525.60 = 533,903.75/x - Step 3: Cross multiply
986,612.75x = 1,361,525.60 × 533,903.75 - Step 4: Simplify right side
986,612.75x = 726,923,622,226.24 - Step 5: Solve for x
x = 726,923,622,226.24/986,612.75 - Step 6: Final answer
x = 736,787.18
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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.