Finding the Fourth Proportional to 776,074.28, 1,070,966.66 and 453,975.08
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Solution
The fourth proportional to 776,074.28, 1,070,966.66 and 453,975.08 is: 626,476.34
Step by Step Solution
- Step 1: Write the proportion equation
776,074.28 : 1,070,966.66 = 453,975.08 : x - Step 2: Convert to fraction form
776,074.28/1,070,966.66 = 453,975.08/x - Step 3: Cross multiply
776,074.28x = 1,070,966.66 × 453,975.08 - Step 4: Simplify right side
776,074.28x = 486,192,175,150.83 - Step 5: Solve for x
x = 486,192,175,150.83/776,074.28 - Step 6: Final answer
x = 626,476.34
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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.