Finding the Fourth Proportional to 516,202.31, 712,472.96 and 286,838.26
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Solution
The fourth proportional to 516,202.31, 712,472.96 and 286,838.26 is: 395,900.02
Step by Step Solution
- Step 1: Write the proportion equation
516,202.31 : 712,472.96 = 286,838.26 : x - Step 2: Convert to fraction form
516,202.31/712,472.96 = 286,838.26/x - Step 3: Cross multiply
516,202.31x = 712,472.96 × 286,838.26 - Step 4: Simplify right side
516,202.31x = 204,364,504,143.45 - Step 5: Solve for x
x = 204,364,504,143.45/516,202.31 - Step 6: Final answer
x = 395,900.02
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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.