Finding the Fourth Proportional to 1,425,384.86, 2,138,470.94 and 1,268,708.18
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Solution
The fourth proportional to 1,425,384.86, 2,138,470.94 and 1,268,708.18 is: 1,903,412.65
Step by Step Solution
- Step 1: Write the proportion equation
1,425,384.86 : 2,138,470.94 = 1,268,708.18 : x - Step 2: Convert to fraction form
1,425,384.86/2,138,470.94 = 1,268,708.18/x - Step 3: Cross multiply
1,425,384.86x = 2,138,470.94 × 1,268,708.18 - Step 4: Simplify right side
1,425,384.86x = 2,713,095,574,270.29 - Step 5: Solve for x
x = 2,713,095,574,270.29/1,425,384.86 - Step 6: Final answer
x = 1,903,412.65
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.