Finding the Fourth Proportional to 509,566.95, 764,347.69 and 130,486.95
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Solution
The fourth proportional to 509,566.95, 764,347.69 and 130,486.95 is: 195,729.72
Step by Step Solution
- Step 1: Write the proportion equation
509,566.95 : 764,347.69 = 130,486.95 : x - Step 2: Convert to fraction form
509,566.95/764,347.69 = 130,486.95/x - Step 3: Cross multiply
509,566.95x = 764,347.69 × 130,486.95 - Step 4: Simplify right side
509,566.95x = 99,737,398,970.75 - Step 5: Solve for x
x = 99,737,398,970.75/509,566.95 - Step 6: Final answer
x = 195,729.72
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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.