Finding the Fourth Proportional to 712,363.05, 1,068,744.35 and 286,198.14
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Solution
The fourth proportional to 712,363.05, 1,068,744.35 and 286,198.14 is: 429,377.47
Step by Step Solution
- Step 1: Write the proportion equation
712,363.05 : 1,068,744.35 = 286,198.14 : x - Step 2: Convert to fraction form
712,363.05/1,068,744.35 = 286,198.14/x - Step 3: Cross multiply
712,363.05x = 1,068,744.35 × 286,198.14 - Step 4: Simplify right side
712,363.05x = 305,872,645,105.51 - Step 5: Solve for x
x = 305,872,645,105.51/712,363.05 - Step 6: Final answer
x = 429,377.47
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.