Finding the Fourth Proportional to 1,247,723.48, 1,871,584.74 and 489,921.50
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Solution
The fourth proportional to 1,247,723.48, 1,871,584.74 and 489,921.50 is: 734,882.06
Step by Step Solution
- Step 1: Write the proportion equation
1,247,723.48 : 1,871,584.74 = 489,921.50 : x - Step 2: Convert to fraction form
1,247,723.48/1,871,584.74 = 489,921.50/x - Step 3: Cross multiply
1,247,723.48x = 1,871,584.74 × 489,921.50 - Step 4: Simplify right side
1,247,723.48x = 916,929,593,839.99 - Step 5: Solve for x
x = 916,929,593,839.99/1,247,723.48 - Step 6: Final answer
x = 734,882.06
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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.