Finding the Fourth Proportional to 1,357,731.63, 1,873,461.37 and 784,661.13
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Solution
The fourth proportional to 1,357,731.63, 1,873,461.37 and 784,661.13 is: 1,082,711.99
Step by Step Solution
- Step 1: Write the proportion equation
1,357,731.63 : 1,873,461.37 = 784,661.13 : x - Step 2: Convert to fraction form
1,357,731.63/1,873,461.37 = 784,661.13/x - Step 3: Cross multiply
1,357,731.63x = 1,873,461.37 × 784,661.13 - Step 4: Simplify right side
1,357,731.63x = 1,470,032,320,279.20 - Step 5: Solve for x
x = 1,470,032,320,279.20/1,357,731.63 - Step 6: Final answer
x = 1,082,711.99
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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.