Finding the Fourth Proportional to 1,354,378.74, 1,869,057.88 and 773,678.76
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Solution
The fourth proportional to 1,354,378.74, 1,869,057.88 and 773,678.76 is: 1,067,685.38
Step by Step Solution
- Step 1: Write the proportion equation
1,354,378.74 : 1,869,057.88 = 773,678.76 : x - Step 2: Convert to fraction form
1,354,378.74/1,869,057.88 = 773,678.76/x - Step 3: Cross multiply
1,354,378.74x = 1,869,057.88 × 773,678.76 - Step 4: Simplify right side
1,354,378.74x = 1,446,050,382,966.63 - Step 5: Solve for x
x = 1,446,050,382,966.63/1,354,378.74 - Step 6: Final answer
x = 1,067,685.38
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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.