Finding the Fourth Proportional to 831,415.18, 1,146,587.79 and 544,831.18
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Solution
The fourth proportional to 831,415.18, 1,146,587.79 and 544,831.18 is: 751,365.62
Step by Step Solution
- Step 1: Write the proportion equation
831,415.18 : 1,146,587.79 = 544,831.18 : x - Step 2: Convert to fraction form
831,415.18/1,146,587.79 = 544,831.18/x - Step 3: Cross multiply
831,415.18x = 1,146,587.79 × 544,831.18 - Step 4: Simplify right side
831,415.18x = 624,696,778,599.29 - Step 5: Solve for x
x = 624,696,778,599.29/831,415.18 - Step 6: Final answer
x = 751,365.62
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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.