Finding the Fourth Proportional to 887,258.10, 1,330,887.15 and 256,235.70
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Solution
The fourth proportional to 887,258.10, 1,330,887.15 and 256,235.70 is: 384,353.55
Step by Step Solution
- Step 1: Write the proportion equation
887,258.10 : 1,330,887.15 = 256,235.70 : x - Step 2: Convert to fraction form
887,258.10/1,330,887.15 = 256,235.70/x - Step 3: Cross multiply
887,258.10x = 1,330,887.15 × 256,235.70 - Step 4: Simplify right side
887,258.10x = 341,020,800,501.26 - Step 5: Solve for x
x = 341,020,800,501.26/887,258.10 - Step 6: Final answer
x = 384,353.55
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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.