Finding the Fourth Proportional to 509,638.71, 764,550.35 and 209,952.75
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Solution
The fourth proportional to 509,638.71, 764,550.35 and 209,952.75 is: 314,967.14
Step by Step Solution
- Step 1: Write the proportion equation
509,638.71 : 764,550.35 = 209,952.75 : x - Step 2: Convert to fraction form
509,638.71/764,550.35 = 209,952.75/x - Step 3: Cross multiply
509,638.71x = 764,550.35 × 209,952.75 - Step 4: Simplify right side
509,638.71x = 160,519,447,446.20 - Step 5: Solve for x
x = 160,519,447,446.20/509,638.71 - Step 6: Final answer
x = 314,967.14
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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.