Finding the Fourth Proportional to 847,260.79, 1,169,177.43 and 479,680.72
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Solution
The fourth proportional to 847,260.79, 1,169,177.43 and 479,680.72 is: 661,935.35
Step by Step Solution
- Step 1: Write the proportion equation
847,260.79 : 1,169,177.43 = 479,680.72 : x - Step 2: Convert to fraction form
847,260.79/1,169,177.43 = 479,680.72/x - Step 3: Cross multiply
847,260.79x = 1,169,177.43 × 479,680.72 - Step 4: Simplify right side
847,260.79x = 560,831,871,430.15 - Step 5: Solve for x
x = 560,831,871,430.15/847,260.79 - Step 6: Final answer
x = 661,935.35
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1.5x scale
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.