Finding the Fourth Proportional to 1,387,716.64, 1,915,024.08 and 784,091.68
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Solution
The fourth proportional to 1,387,716.64, 1,915,024.08 and 784,091.68 is: 1,082,032.46
Step by Step Solution
- Step 1: Write the proportion equation
1,387,716.64 : 1,915,024.08 = 784,091.68 : x - Step 2: Convert to fraction form
1,387,716.64/1,915,024.08 = 784,091.68/x - Step 3: Cross multiply
1,387,716.64x = 1,915,024.08 × 784,091.68 - Step 4: Simplify right side
1,387,716.64x = 1,501,554,448,127.65 - Step 5: Solve for x
x = 1,501,554,448,127.65/1,387,716.64 - Step 6: Final answer
x = 1,082,032.46
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.