Finding the Fourth Proportional to 754,428.60, 1,131,782.80 and 249,024.76
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Solution
The fourth proportional to 754,428.60, 1,131,782.80 and 249,024.76 is: 373,583.32
Step by Step Solution
- Step 1: Write the proportion equation
754,428.60 : 1,131,782.80 = 249,024.76 : x - Step 2: Convert to fraction form
754,428.60/1,131,782.80 = 249,024.76/x - Step 3: Cross multiply
754,428.60x = 1,131,782.80 × 249,024.76 - Step 4: Simplify right side
754,428.60x = 281,841,940,142.13 - Step 5: Solve for x
x = 281,841,940,142.13/754,428.60 - Step 6: Final answer
x = 373,583.32
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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.