Finding the Fourth Proportional to 775,179.84, 1,069,507.76 and 452,657.28
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Solution
The fourth proportional to 775,179.84, 1,069,507.76 and 452,657.28 is: 624,526.65
Step by Step Solution
- Step 1: Write the proportion equation
775,179.84 : 1,069,507.76 = 452,657.28 : x - Step 2: Convert to fraction form
775,179.84/1,069,507.76 = 452,657.28/x - Step 3: Cross multiply
775,179.84x = 1,069,507.76 × 452,657.28 - Step 4: Simplify right side
775,179.84x = 484,120,471,317.21 - Step 5: Solve for x
x = 484,120,471,317.21/775,179.84 - Step 6: Final answer
x = 624,526.65
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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.