Finding the Fourth Proportional to 418,781.94, 578,021.71 and 237,599.92
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Solution
The fourth proportional to 418,781.94, 578,021.71 and 237,599.92 is: 327,946.12
Step by Step Solution
- Step 1: Write the proportion equation
418,781.94 : 578,021.71 = 237,599.92 : x - Step 2: Convert to fraction form
418,781.94/578,021.71 = 237,599.92/x - Step 3: Cross multiply
418,781.94x = 578,021.71 × 237,599.92 - Step 4: Simplify right side
418,781.94x = 137,337,912,054.26 - Step 5: Solve for x
x = 137,337,912,054.26/418,781.94 - Step 6: Final answer
x = 327,946.12
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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.