Finding the Fourth Proportional to 692,463.44, 1,038,798.84 and 218,991.44
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Solution
The fourth proportional to 692,463.44, 1,038,798.84 and 218,991.44 is: 328,519.95
Step by Step Solution
- Step 1: Write the proportion equation
692,463.44 : 1,038,798.84 = 218,991.44 : x - Step 2: Convert to fraction form
692,463.44/1,038,798.84 = 218,991.44/x - Step 3: Cross multiply
692,463.44x = 1,038,798.84 × 218,991.44 - Step 4: Simplify right side
692,463.44x = 227,488,053,841.93 - Step 5: Solve for x
x = 227,488,053,841.93/692,463.44 - Step 6: Final answer
x = 328,519.95
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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.