Finding the Fourth Proportional to 1,972,535.10, 2,959,969.05 and 1,438,712.70
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Solution
The fourth proportional to 1,972,535.10, 2,959,969.05 and 1,438,712.70 is: 2,158,919.79
Step by Step Solution
- Step 1: Write the proportion equation
1,972,535.10 : 2,959,969.05 = 1,438,712.70 : x - Step 2: Convert to fraction form
1,972,535.10/2,959,969.05 = 1,438,712.70/x - Step 3: Cross multiply
1,972,535.10x = 2,959,969.05 × 1,438,712.70 - Step 4: Simplify right side
1,972,535.10x = 4,258,545,063,841.93 - Step 5: Solve for x
x = 4,258,545,063,841.93/1,972,535.10 - Step 6: Final answer
x = 2,158,919.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.