Finding the Fourth Proportional to 747,888.20, 1,121,838.70 and 249,252.20
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Solution
The fourth proportional to 747,888.20, 1,121,838.70 and 249,252.20 is: 373,880.43
Step by Step Solution
- Step 1: Write the proportion equation
747,888.20 : 1,121,838.70 = 249,252.20 : x - Step 2: Convert to fraction form
747,888.20/1,121,838.70 = 249,252.20/x - Step 3: Cross multiply
747,888.20x = 1,121,838.70 × 249,252.20 - Step 4: Simplify right side
747,888.20x = 279,620,764,020.14 - Step 5: Solve for x
x = 279,620,764,020.14/747,888.20 - Step 6: Final answer
x = 373,880.43
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1.5x scale
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.