Finding the Fourth Proportional to 489,389.67, 675,304.97 and 282,645.27
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Solution
The fourth proportional to 489,389.67, 675,304.97 and 282,645.27 is: 390,019.99
Step by Step Solution
- Step 1: Write the proportion equation
489,389.67 : 675,304.97 = 282,645.27 : x - Step 2: Convert to fraction form
489,389.67/675,304.97 = 282,645.27/x - Step 3: Cross multiply
489,389.67x = 675,304.97 × 282,645.27 - Step 4: Simplify right side
489,389.67x = 190,871,754,164.77 - Step 5: Solve for x
x = 190,871,754,164.77/489,389.67 - Step 6: Final answer
x = 390,019.99
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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.