Finding the Fourth Proportional to 512,393.31, 707,102.87 and 286,038.81
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Solution
The fourth proportional to 512,393.31, 707,102.87 and 286,038.81 is: 394,733.61
Step by Step Solution
- Step 1: Write the proportion equation
512,393.31 : 707,102.87 = 286,038.81 : x - Step 2: Convert to fraction form
512,393.31/707,102.87 = 286,038.81/x - Step 3: Cross multiply
512,393.31x = 707,102.87 × 286,038.81 - Step 4: Simplify right side
512,393.31x = 202,258,862,052.19 - Step 5: Solve for x
x = 202,258,862,052.19/512,393.31 - Step 6: Final answer
x = 394,733.61
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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.