Finding the Fourth Proportional to 652,252.20, 978,378.30 and 439,675.80
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Solution
The fourth proportional to 652,252.20, 978,378.30 and 439,675.80 is: 659,513.70
Step by Step Solution
- Step 1: Write the proportion equation
652,252.20 : 978,378.30 = 439,675.80 : x - Step 2: Convert to fraction form
652,252.20/978,378.30 = 439,675.80/x - Step 3: Cross multiply
652,252.20x = 978,378.30 × 439,675.80 - Step 4: Simplify right side
652,252.20x = 430,169,261,755.14 - Step 5: Solve for x
x = 430,169,261,755.14/652,252.20 - Step 6: Final answer
x = 659,513.70
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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.