Finding the Fourth Proportional to 787,735.42, 1,087,069.35 and 430,039.42
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Solution
The fourth proportional to 787,735.42, 1,087,069.35 and 430,039.42 is: 593,451.38
Step by Step Solution
- Step 1: Write the proportion equation
787,735.42 : 1,087,069.35 = 430,039.42 : x - Step 2: Convert to fraction form
787,735.42/1,087,069.35 = 430,039.42/x - Step 3: Cross multiply
787,735.42x = 1,087,069.35 × 430,039.42 - Step 4: Simplify right side
787,735.42x = 467,482,672,773.78 - Step 5: Solve for x
x = 467,482,672,773.78/787,735.42 - Step 6: Final answer
x = 593,451.38
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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.