Finding the Fourth Proportional to 784,831.06, 1,083,273.96 and 462,755.71
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Solution
The fourth proportional to 784,831.06, 1,083,273.96 and 462,755.71 is: 638,724.99
Step by Step Solution
- Step 1: Write the proportion equation
784,831.06 : 1,083,273.96 = 462,755.71 : x - Step 2: Convert to fraction form
784,831.06/1,083,273.96 = 462,755.71/x - Step 3: Cross multiply
784,831.06x = 1,083,273.96 × 462,755.71 - Step 4: Simplify right side
784,831.06x = 501,291,210,484.31 - Step 5: Solve for x
x = 501,291,210,484.31/784,831.06 - Step 6: Final answer
x = 638,724.99
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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.