Finding the Fourth Proportional to 769,634.76, 1,062,099.90 and 430,108.68
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Solution
The fourth proportional to 769,634.76, 1,062,099.90 and 430,108.68 is: 593,552.18
Step by Step Solution
- Step 1: Write the proportion equation
769,634.76 : 1,062,099.90 = 430,108.68 : x - Step 2: Convert to fraction form
769,634.76/1,062,099.90 = 430,108.68/x - Step 3: Cross multiply
769,634.76x = 1,062,099.90 × 430,108.68 - Step 4: Simplify right side
769,634.76x = 456,818,386,017.13 - Step 5: Solve for x
x = 456,818,386,017.13/769,634.76 - Step 6: Final answer
x = 593,552.18
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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.