Finding the Fourth Proportional to 2,831,683.80, 4,247,525.70 and 837,139.80
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Solution
The fourth proportional to 2,831,683.80, 4,247,525.70 and 837,139.80 is: 1,255,709.70
Step by Step Solution
- Step 1: Write the proportion equation
2,831,683.80 : 4,247,525.70 = 837,139.80 : x - Step 2: Convert to fraction form
2,831,683.80/4,247,525.70 = 837,139.80/x - Step 3: Cross multiply
2,831,683.80x = 4,247,525.70 × 837,139.80 - Step 4: Simplify right side
2,831,683.80x = 3,555,772,814,992.86 - Step 5: Solve for x
x = 3,555,772,814,992.86/2,831,683.80 - Step 6: Final answer
x = 1,255,709.70
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1.5x scale
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.