Finding the Fourth Proportional to 777,320.33, 1,163,346.98 and 477,990.50
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Solution
The fourth proportional to 777,320.33, 1,163,346.98 and 477,990.50 is: 715,366.34
Step by Step Solution
- Step 1: Write the proportion equation
777,320.33 : 1,163,346.98 = 477,990.50 : x - Step 2: Convert to fraction form
777,320.33/1,163,346.98 = 477,990.50/x - Step 3: Cross multiply
777,320.33x = 1,163,346.98 × 477,990.50 - Step 4: Simplify right side
777,320.33x = 556,068,796,437.00 - Step 5: Solve for x
x = 556,068,796,437.00/777,320.33 - Step 6: Final answer
x = 715,366.34
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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.