Finding the Fourth Proportional to 774,315.32, 1,068,518.79 and 430,173.45
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Solution
The fourth proportional to 774,315.32, 1,068,518.79 and 430,173.45 is: 593,619.17
Step by Step Solution
- Step 1: Write the proportion equation
774,315.32 : 1,068,518.79 = 430,173.45 : x - Step 2: Convert to fraction form
774,315.32/1,068,518.79 = 430,173.45/x - Step 3: Cross multiply
774,315.32x = 1,068,518.79 × 430,173.45 - Step 4: Simplify right side
774,315.32x = 459,648,414,284.13 - Step 5: Solve for x
x = 459,648,414,284.13/774,315.32 - Step 6: Final answer
x = 593,619.17
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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.