Finding the Fourth Proportional to 1,425,128.17, 1,966,708.71 and 813,268.75
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Solution
The fourth proportional to 1,425,128.17, 1,966,708.71 and 813,268.75 is: 1,122,329.04
Step by Step Solution
- Step 1: Write the proportion equation
1,425,128.17 : 1,966,708.71 = 813,268.75 : x - Step 2: Convert to fraction form
1,425,128.17/1,966,708.71 = 813,268.75/x - Step 3: Cross multiply
1,425,128.17x = 1,966,708.71 × 813,268.75 - Step 4: Simplify right side
1,425,128.17x = 1,599,462,734,195.81 - Step 5: Solve for x
x = 1,599,462,734,195.81/1,425,128.17 - Step 6: Final answer
x = 1,122,329.04
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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.