Finding the Fourth Proportional to 774,643.40, 1,158,854.70 and 670,617.80
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Solution
The fourth proportional to 774,643.40, 1,158,854.70 and 670,617.80 is: 1,003,233.99
Step by Step Solution
- Step 1: Write the proportion equation
774,643.40 : 1,158,854.70 = 670,617.80 : x - Step 2: Convert to fraction form
774,643.40/1,158,854.70 = 670,617.80/x - Step 3: Cross multiply
774,643.40x = 1,158,854.70 × 670,617.80 - Step 4: Simplify right side
774,643.40x = 777,148,589,433.66 - Step 5: Solve for x
x = 777,148,589,433.66/774,643.40 - Step 6: Final answer
x = 1,003,233.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.