Finding the Fourth Proportional to 743,148.68, 1,114,437.79 and 316,413.95
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Solution
The fourth proportional to 743,148.68, 1,114,437.79 and 316,413.95 is: 474,499.47
Step by Step Solution
- Step 1: Write the proportion equation
743,148.68 : 1,114,437.79 = 316,413.95 : x - Step 2: Convert to fraction form
743,148.68/1,114,437.79 = 316,413.95/x - Step 3: Cross multiply
743,148.68x = 1,114,437.79 × 316,413.95 - Step 4: Simplify right side
743,148.68x = 352,623,656,008.91 - Step 5: Solve for x
x = 352,623,656,008.91/743,148.68 - Step 6: Final answer
x = 474,499.47
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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.