Finding the Fourth Proportional to 1,430,382.68, 1,973,949.09 and 777,020.99
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Solution
The fourth proportional to 1,430,382.68, 1,973,949.09 and 777,020.99 is: 1,072,300.36
Step by Step Solution
- Step 1: Write the proportion equation
1,430,382.68 : 1,973,949.09 = 777,020.99 : x - Step 2: Convert to fraction form
1,430,382.68/1,973,949.09 = 777,020.99/x - Step 3: Cross multiply
1,430,382.68x = 1,973,949.09 × 777,020.99 - Step 4: Simplify right side
1,430,382.68x = 1,533,799,862,366.55 - Step 5: Solve for x
x = 1,533,799,862,366.55/1,430,382.68 - Step 6: Final answer
x = 1,072,300.36
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.