Finding the Fourth Proportional to 516,203.80, 774,305.70 and 516,203.80
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Solution
The fourth proportional to 516,203.80, 774,305.70 and 516,203.80 is: 774,305.70
Step by Step Solution
- Step 1: Write the proportion equation
516,203.80 : 774,305.70 = 516,203.80 : x - Step 2: Convert to fraction form
516,203.80/774,305.70 = 516,203.80/x - Step 3: Cross multiply
516,203.80x = 774,305.70 × 516,203.80 - Step 4: Simplify right side
516,203.80x = 399,699,544,701.66 - Step 5: Solve for x
x = 399,699,544,701.66/516,203.80 - Step 6: Final answer
x = 774,305.70
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.