Finding the Fourth Proportional to 719,921.80, 1,079,882.70 and 579,953.80
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Solution
The fourth proportional to 719,921.80, 1,079,882.70 and 579,953.80 is: 869,930.70
Step by Step Solution
- Step 1: Write the proportion equation
719,921.80 : 1,079,882.70 = 579,953.80 : x - Step 2: Convert to fraction form
719,921.80/1,079,882.70 = 579,953.80/x - Step 3: Cross multiply
719,921.80x = 1,079,882.70 × 579,953.80 - Step 4: Simplify right side
719,921.80x = 626,282,075,419.26 - Step 5: Solve for x
x = 626,282,075,419.26/719,921.80 - Step 6: Final answer
x = 869,930.70
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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.