Finding the Fourth Proportional to 817,428.62, 1,226,128.62 and 367,831.28
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Solution
The fourth proportional to 817,428.62, 1,226,128.62 and 367,831.28 is: 551,740.48
Step by Step Solution
- Step 1: Write the proportion equation
817,428.62 : 1,226,128.62 = 367,831.28 : x - Step 2: Convert to fraction form
817,428.62/1,226,128.62 = 367,831.28/x - Step 3: Cross multiply
817,428.62x = 1,226,128.62 × 367,831.28 - Step 4: Simplify right side
817,428.62x = 451,008,459,739.23 - Step 5: Solve for x
x = 451,008,459,739.23/817,428.62 - Step 6: Final answer
x = 551,740.48
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.