Finding the Fourth Proportional to 1,292,476.84, 1,783,666.42 and 711,725.14
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Solution
The fourth proportional to 1,292,476.84, 1,783,666.42 and 711,725.14 is: 982,207.34
Step by Step Solution
- Step 1: Write the proportion equation
1,292,476.84 : 1,783,666.42 = 711,725.14 : x - Step 2: Convert to fraction form
1,292,476.84/1,783,666.42 = 711,725.14/x - Step 3: Cross multiply
1,292,476.84x = 1,783,666.42 × 711,725.14 - Step 4: Simplify right side
1,292,476.84x = 1,269,480,236,941.52 - Step 5: Solve for x
x = 1,269,480,236,941.52/1,292,476.84 - Step 6: Final answer
x = 982,207.34
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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.