Finding the Fourth Proportional to 775,530.28, 1,070,231.79 and 453,510.93
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Solution
The fourth proportional to 775,530.28, 1,070,231.79 and 453,510.93 is: 625,845.09
Step by Step Solution
- Step 1: Write the proportion equation
775,530.28 : 1,070,231.79 = 453,510.93 : x - Step 2: Convert to fraction form
775,530.28/1,070,231.79 = 453,510.93/x - Step 3: Cross multiply
775,530.28x = 1,070,231.79 × 453,510.93 - Step 4: Simplify right side
775,530.28x = 485,361,817,561.50 - Step 5: Solve for x
x = 485,361,817,561.50/775,530.28 - Step 6: Final answer
x = 625,845.09
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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.