Finding the Fourth Proportional to 776,437.53, 1,163,711.63 and 415,721.66
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Solution
The fourth proportional to 776,437.53, 1,163,711.63 and 415,721.66 is: 623,076.69
Step by Step Solution
- Step 1: Write the proportion equation
776,437.53 : 1,163,711.63 = 415,721.66 : x - Step 2: Convert to fraction form
776,437.53/1,163,711.63 = 415,721.66/x - Step 3: Cross multiply
776,437.53x = 1,163,711.63 × 415,721.66 - Step 4: Simplify right side
776,437.53x = 483,780,122,687.74 - Step 5: Solve for x
x = 483,780,122,687.74/776,437.53 - Step 6: Final answer
x = 623,076.69
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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.