Finding the Fourth Proportional to 516,739.62, 712,936.08 and 312,725.31
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Solution
The fourth proportional to 516,739.62, 712,936.08 and 312,725.31 is: 431,461.32
Step by Step Solution
- Step 1: Write the proportion equation
516,739.62 : 712,936.08 = 312,725.31 : x - Step 2: Convert to fraction form
516,739.62/712,936.08 = 312,725.31/x - Step 3: Cross multiply
516,739.62x = 712,936.08 × 312,725.31 - Step 4: Simplify right side
516,739.62x = 222,953,156,628.19 - Step 5: Solve for x
x = 222,953,156,628.19/516,739.62 - Step 6: Final answer
x = 431,461.32
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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.