Finding the Fourth Proportional to 516,201.31, 712,471.58 and 286,837.26
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Solution
The fourth proportional to 516,201.31, 712,471.58 and 286,837.26 is: 395,898.64
Step by Step Solution
- Step 1: Write the proportion equation
516,201.31 : 712,471.58 = 286,837.26 : x - Step 2: Convert to fraction form
516,201.31/712,471.58 = 286,837.26/x - Step 3: Cross multiply
516,201.31x = 712,471.58 × 286,837.26 - Step 4: Simplify right side
516,201.31x = 204,363,395,835.07 - Step 5: Solve for x
x = 204,363,395,835.07/516,201.31 - Step 6: Final answer
x = 395,898.64
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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.