Finding the Fourth Proportional to 861,612.64, 1,189,053.68 and 474,469.44
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Solution
The fourth proportional to 861,612.64, 1,189,053.68 and 474,469.44 is: 654,783.38
Step by Step Solution
- Step 1: Write the proportion equation
861,612.64 : 1,189,053.68 = 474,469.44 : x - Step 2: Convert to fraction form
861,612.64/1,189,053.68 = 474,469.44/x - Step 3: Cross multiply
861,612.64x = 1,189,053.68 × 474,469.44 - Step 4: Simplify right side
861,612.64x = 564,169,633,679.54 - Step 5: Solve for x
x = 564,169,633,679.54/861,612.64 - Step 6: Final answer
x = 654,783.38
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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.