Finding the Fourth Proportional to 719,927.80, 1,079,891.70 and 579,959.80
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Solution
The fourth proportional to 719,927.80, 1,079,891.70 and 579,959.80 is: 869,939.70
Step by Step Solution
- Step 1: Write the proportion equation
719,927.80 : 1,079,891.70 = 579,959.80 : x - Step 2: Convert to fraction form
719,927.80/1,079,891.70 = 579,959.80/x - Step 3: Cross multiply
719,927.80x = 1,079,891.70 × 579,959.80 - Step 4: Simplify right side
719,927.80x = 626,293,774,353.66 - Step 5: Solve for x
x = 626,293,774,353.66/719,927.80 - Step 6: Final answer
x = 869,939.70
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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.