Finding the Fourth Proportional to 3,128,135.70, 4,692,203.55 and 1,106,363.55
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Solution
The fourth proportional to 3,128,135.70, 4,692,203.55 and 1,106,363.55 is: 1,659,545.33
Step by Step Solution
- Step 1: Write the proportion equation
3,128,135.70 : 4,692,203.55 = 1,106,363.55 : x - Step 2: Convert to fraction form
3,128,135.70/4,692,203.55 = 1,106,363.55/x - Step 3: Cross multiply
3,128,135.70x = 4,692,203.55 × 1,106,363.55 - Step 4: Simplify right side
3,128,135.70x = 5,191,282,976,900.60 - Step 5: Solve for x
x = 5,191,282,976,900.60/3,128,135.70 - Step 6: Final answer
x = 1,659,545.33
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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.