Finding the Fourth Proportional to 1,698,138.24, 2,343,450.12 and 972,971.40
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Solution
The fourth proportional to 1,698,138.24, 2,343,450.12 and 972,971.40 is: 1,342,711.62
Step by Step Solution
- Step 1: Write the proportion equation
1,698,138.24 : 2,343,450.12 = 972,971.40 : x - Step 2: Convert to fraction form
1,698,138.24/2,343,450.12 = 972,971.40/x - Step 3: Cross multiply
1,698,138.24x = 2,343,450.12 × 972,971.40 - Step 4: Simplify right side
1,698,138.24x = 2,280,109,944,086.57 - Step 5: Solve for x
x = 2,280,109,944,086.57/1,698,138.24 - Step 6: Final answer
x = 1,342,711.62
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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.