Finding the Fourth Proportional to 652,122.10, 978,183.15 and 439,545.70
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Solution
The fourth proportional to 652,122.10, 978,183.15 and 439,545.70 is: 659,318.55
Step by Step Solution
- Step 1: Write the proportion equation
652,122.10 : 978,183.15 = 439,545.70 : x - Step 2: Convert to fraction form
652,122.10/978,183.15 = 439,545.70/x - Step 3: Cross multiply
652,122.10x = 978,183.15 × 439,545.70 - Step 4: Simplify right side
652,122.10x = 429,956,197,394.96 - Step 5: Solve for x
x = 429,956,197,394.96/652,122.10 - Step 6: Final answer
x = 659,318.55
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1.5x scale
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.