Finding the Fourth Proportional to 421,988.99, 582,616.40 and 376,588.98
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Solution
The fourth proportional to 421,988.99, 582,616.40 and 376,588.98 is: 519,935.17
Step by Step Solution
- Step 1: Write the proportion equation
421,988.99 : 582,616.40 = 376,588.98 : x - Step 2: Convert to fraction form
421,988.99/582,616.40 = 376,588.98/x - Step 3: Cross multiply
421,988.99x = 582,616.40 × 376,588.98 - Step 4: Simplify right side
421,988.99x = 219,406,913,924.33 - Step 5: Solve for x
x = 219,406,913,924.33/421,988.99 - Step 6: Final answer
x = 519,935.17
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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.