Finding the Fourth Proportional to 807,788.10, 1,211,682.15 and 239,189.70
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Solution
The fourth proportional to 807,788.10, 1,211,682.15 and 239,189.70 is: 358,784.55
Step by Step Solution
- Step 1: Write the proportion equation
807,788.10 : 1,211,682.15 = 239,189.70 : x - Step 2: Convert to fraction form
807,788.10/1,211,682.15 = 239,189.70/x - Step 3: Cross multiply
807,788.10x = 1,211,682.15 × 239,189.70 - Step 4: Simplify right side
807,788.10x = 289,821,889,953.86 - Step 5: Solve for x
x = 289,821,889,953.86/807,788.10 - Step 6: Final answer
x = 358,784.55
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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.