Finding the Fourth Proportional to 767,865.36, 1,151,798.16 and 393,649.68
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Solution
The fourth proportional to 767,865.36, 1,151,798.16 and 393,649.68 is: 590,474.58
Step by Step Solution
- Step 1: Write the proportion equation
767,865.36 : 1,151,798.16 = 393,649.68 : x - Step 2: Convert to fraction form
767,865.36/1,151,798.16 = 393,649.68/x - Step 3: Cross multiply
767,865.36x = 1,151,798.16 × 393,649.68 - Step 4: Simplify right side
767,865.36x = 453,404,977,108.59 - Step 5: Solve for x
x = 453,404,977,108.59/767,865.36 - Step 6: Final answer
x = 590,474.58
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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.