Finding the Fourth Proportional to 490,426.55, 735,635.12 and 290,603.09
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Solution
The fourth proportional to 490,426.55, 735,635.12 and 290,603.09 is: 435,901.85
Step by Step Solution
- Step 1: Write the proportion equation
490,426.55 : 735,635.12 = 290,603.09 : x - Step 2: Convert to fraction form
490,426.55/735,635.12 = 290,603.09/x - Step 3: Cross multiply
490,426.55x = 735,635.12 × 290,603.09 - Step 4: Simplify right side
490,426.55x = 213,777,839,370.59 - Step 5: Solve for x
x = 213,777,839,370.59/490,426.55 - Step 6: Final answer
x = 435,901.85
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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.