Finding the Fourth Proportional to 812,125.74, 1,218,603.60 and 542,437.68
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Solution
The fourth proportional to 812,125.74, 1,218,603.60 and 542,437.68 is: 813,933.70
Step by Step Solution
- Step 1: Write the proportion equation
812,125.74 : 1,218,603.60 = 542,437.68 : x - Step 2: Convert to fraction form
812,125.74/1,218,603.60 = 542,437.68/x - Step 3: Cross multiply
812,125.74x = 1,218,603.60 × 542,437.68 - Step 4: Simplify right side
812,125.74x = 661,016,509,623.65 - Step 5: Solve for x
x = 661,016,509,623.65/812,125.74 - Step 6: Final answer
x = 813,933.70
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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.