Finding the Fourth Proportional to 696,681.26, 961,343.27 and 390,694.68
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Solution
The fourth proportional to 696,681.26, 961,343.27 and 390,694.68 is: 539,115.54
Step by Step Solution
- Step 1: Write the proportion equation
696,681.26 : 961,343.27 = 390,694.68 : x - Step 2: Convert to fraction form
696,681.26/961,343.27 = 390,694.68/x - Step 3: Cross multiply
696,681.26x = 961,343.27 × 390,694.68 - Step 4: Simplify right side
696,681.26x = 375,591,694,482.61 - Step 5: Solve for x
x = 375,591,694,482.61/696,681.26 - Step 6: Final answer
x = 539,115.54
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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.