Finding the Fourth Proportional to 516,327.13, 712,529.12 and 286,921.77
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Solution
The fourth proportional to 516,327.13, 712,529.12 and 286,921.77 is: 395,950.75
Step by Step Solution
- Step 1: Write the proportion equation
516,327.13 : 712,529.12 = 286,921.77 : x - Step 2: Convert to fraction form
516,327.13/712,529.12 = 286,921.77/x - Step 3: Cross multiply
516,327.13x = 712,529.12 × 286,921.77 - Step 4: Simplify right side
516,327.13x = 204,440,116,286.94 - Step 5: Solve for x
x = 204,440,116,286.94/516,327.13 - Step 6: Final answer
x = 395,950.75
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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.