Finding the Fourth Proportional to 1,202,965.92, 1,660,029.47 and 686,699.28
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Solution
The fourth proportional to 1,202,965.92, 1,660,029.47 and 686,699.28 is: 947,608.76
Step by Step Solution
- Step 1: Write the proportion equation
1,202,965.92 : 1,660,029.47 = 686,699.28 : x - Step 2: Convert to fraction form
1,202,965.92/1,660,029.47 = 686,699.28/x - Step 3: Cross multiply
1,202,965.92x = 1,660,029.47 × 686,699.28 - Step 4: Simplify right side
1,202,965.92x = 1,139,941,038,394.29 - Step 5: Solve for x
x = 1,139,941,038,394.29/1,202,965.92 - Step 6: Final answer
x = 947,608.76
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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.