Finding the Fourth Proportional to 1,425,129.17, 1,966,710.09 and 813,269.75
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Solution
The fourth proportional to 1,425,129.17, 1,966,710.09 and 813,269.75 is: 1,122,330.42
Step by Step Solution
- Step 1: Write the proportion equation
1,425,129.17 : 1,966,710.09 = 813,269.75 : x - Step 2: Convert to fraction form
1,425,129.17/1,966,710.09 = 813,269.75/x - Step 3: Cross multiply
1,425,129.17x = 1,966,710.09 × 813,269.75 - Step 4: Simplify right side
1,425,129.17x = 1,599,465,823,216.78 - Step 5: Solve for x
x = 1,599,465,823,216.78/1,425,129.17 - Step 6: Final answer
x = 1,122,330.42
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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.