Finding the Fourth Proportional to 774,400.14, 1,069,060.95 and 484,173.09
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Solution
The fourth proportional to 774,400.14, 1,069,060.95 and 484,173.09 is: 668,401.92
Step by Step Solution
- Step 1: Write the proportion equation
774,400.14 : 1,069,060.95 = 484,173.09 : x - Step 2: Convert to fraction form
774,400.14/1,069,060.95 = 484,173.09/x - Step 3: Cross multiply
774,400.14x = 1,069,060.95 × 484,173.09 - Step 4: Simplify right side
774,400.14x = 517,610,543,559.84 - Step 5: Solve for x
x = 517,610,543,559.84/774,400.14 - Step 6: Final answer
x = 668,401.92
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1.5x scale
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.