Finding the Fourth Proportional to 1,690,944.15, 2,332,444.08 and 1,110,197.24
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Solution
The fourth proportional to 1,690,944.15, 2,332,444.08 and 1,110,197.24 is: 1,531,376.99
Step by Step Solution
- Step 1: Write the proportion equation
1,690,944.15 : 2,332,444.08 = 1,110,197.24 : x - Step 2: Convert to fraction form
1,690,944.15/2,332,444.08 = 1,110,197.24/x - Step 3: Cross multiply
1,690,944.15x = 2,332,444.08 × 1,110,197.24 - Step 4: Simplify right side
1,690,944.15x = 2,589,472,968,408.12 - Step 5: Solve for x
x = 2,589,472,968,408.12/1,690,944.15 - Step 6: Final answer
x = 1,531,376.99
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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.