Finding the Fourth Proportional to 1,389,957.17, 2,084,972.20 and 479,129.99
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Solution
The fourth proportional to 1,389,957.17, 2,084,972.20 and 479,129.99 is: 718,707.54
Step by Step Solution
- Step 1: Write the proportion equation
1,389,957.17 : 2,084,972.20 = 479,129.99 : x - Step 2: Convert to fraction form
1,389,957.17/2,084,972.20 = 479,129.99/x - Step 3: Cross multiply
1,389,957.17x = 2,084,972.20 × 479,129.99 - Step 4: Simplify right side
1,389,957.17x = 998,972,697,713.59 - Step 5: Solve for x
x = 998,972,697,713.59/1,389,957.17 - Step 6: Final answer
x = 718,707.54
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.