Finding the Fourth Proportional to 1,440,933.71, 2,161,351.32 and 683,138.21
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Solution
The fourth proportional to 1,440,933.71, 2,161,351.32 and 683,138.21 is: 1,024,683.97
Step by Step Solution
- Step 1: Write the proportion equation
1,440,933.71 : 2,161,351.32 = 683,138.21 : x - Step 2: Convert to fraction form
1,440,933.71/2,161,351.32 = 683,138.21/x - Step 3: Cross multiply
1,440,933.71x = 2,161,351.32 × 683,138.21 - Step 4: Simplify right side
1,440,933.71x = 1,476,501,671,925.94 - Step 5: Solve for x
x = 1,476,501,671,925.94/1,440,933.71 - Step 6: Final answer
x = 1,024,683.97
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1.5x scale
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.