Finding the Fourth Proportional to 2,124,380.79, 2,931,645.92 and 1,157,511.08
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Solution
The fourth proportional to 2,124,380.79, 2,931,645.92 and 1,157,511.08 is: 1,597,365.52
Step by Step Solution
- Step 1: Write the proportion equation
2,124,380.79 : 2,931,645.92 = 1,157,511.08 : x - Step 2: Convert to fraction form
2,124,380.79/2,931,645.92 = 1,157,511.08/x - Step 3: Cross multiply
2,124,380.79x = 2,931,645.92 × 1,157,511.08 - Step 4: Simplify right side
2,124,380.79x = 3,393,412,628,333.10 - Step 5: Solve for x
x = 3,393,412,628,333.10/2,124,380.79 - Step 6: Final answer
x = 1,597,365.52
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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.