Finding the Fourth Proportional to 652,138.20, 978,207.30 and 452,683.80
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Solution
The fourth proportional to 652,138.20, 978,207.30 and 452,683.80 is: 679,025.70
Step by Step Solution
- Step 1: Write the proportion equation
652,138.20 : 978,207.30 = 452,683.80 : x - Step 2: Convert to fraction form
652,138.20/978,207.30 = 452,683.80/x - Step 3: Cross multiply
652,138.20x = 978,207.30 × 452,683.80 - Step 4: Simplify right side
652,138.20x = 442,818,597,751.74 - Step 5: Solve for x
x = 442,818,597,751.74/652,138.20 - Step 6: Final answer
x = 679,025.70
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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.