Finding the Fourth Proportional to 711,831.76, 982,327.84 and 389,541.88
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Solution
The fourth proportional to 711,831.76, 982,327.84 and 389,541.88 is: 537,567.80
Step by Step Solution
- Step 1: Write the proportion equation
711,831.76 : 982,327.84 = 389,541.88 : x - Step 2: Convert to fraction form
711,831.76/982,327.84 = 389,541.88/x - Step 3: Cross multiply
711,831.76x = 982,327.84 × 389,541.88 - Step 4: Simplify right side
711,831.76x = 382,657,833,569.94 - Step 5: Solve for x
x = 382,657,833,569.94/711,831.76 - Step 6: Final answer
x = 537,567.80
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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.