Finding the Fourth Proportional to 608,607.68, 839,595.60 and 393,817.08
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Solution
The fourth proportional to 608,607.68, 839,595.60 and 393,817.08 is: 543,284.45
Step by Step Solution
- Step 1: Write the proportion equation
608,607.68 : 839,595.60 = 393,817.08 : x - Step 2: Convert to fraction form
608,607.68/839,595.60 = 393,817.08/x - Step 3: Cross multiply
608,607.68x = 839,595.60 × 393,817.08 - Step 4: Simplify right side
608,607.68x = 330,647,087,572.85 - Step 5: Solve for x
x = 330,647,087,572.85/608,607.68 - Step 6: Final answer
x = 543,284.45
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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.