Finding the Fourth Proportional to 855,138.12, 1,180,090.71 and 467,953.62
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Solution
The fourth proportional to 855,138.12, 1,180,090.71 and 467,953.62 is: 645,776.05
Step by Step Solution
- Step 1: Write the proportion equation
855,138.12 : 1,180,090.71 = 467,953.62 : x - Step 2: Convert to fraction form
855,138.12/1,180,090.71 = 467,953.62/x - Step 3: Cross multiply
855,138.12x = 1,180,090.71 × 467,953.62 - Step 4: Simplify right side
855,138.12x = 552,227,719,672.87 - Step 5: Solve for x
x = 552,227,719,672.87/855,138.12 - Step 6: Final answer
x = 645,776.05
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.