Finding the Fourth Proportional to 1,247,629.15, 1,871,443.86 and 489,827.98
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Solution
The fourth proportional to 1,247,629.15, 1,871,443.86 and 489,827.98 is: 734,742.02
Step by Step Solution
- Step 1: Write the proportion equation
1,247,629.15 : 1,871,443.86 = 489,827.98 : x - Step 2: Convert to fraction form
1,247,629.15/1,871,443.86 = 489,827.98/x - Step 3: Cross multiply
1,247,629.15x = 1,871,443.86 × 489,827.98 - Step 4: Simplify right side
1,247,629.15x = 916,685,565,627.20 - Step 5: Solve for x
x = 916,685,565,627.20/1,247,629.15 - Step 6: Final answer
x = 734,742.02
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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.