Finding the Fourth Proportional to 3,127,997.20, 4,688,496.60 and 1,330,574.80
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Solution
The fourth proportional to 3,127,997.20, 4,688,496.60 and 1,330,574.80 is: 1,994,373.72
Step by Step Solution
- Step 1: Write the proportion equation
3,127,997.20 : 4,688,496.60 = 1,330,574.80 : x - Step 2: Convert to fraction form
3,127,997.20/4,688,496.60 = 1,330,574.80/x - Step 3: Cross multiply
3,127,997.20x = 4,688,496.60 × 1,330,574.80 - Step 4: Simplify right side
3,127,997.20x = 6,238,395,425,845.68 - Step 5: Solve for x
x = 6,238,395,425,845.68/3,127,997.20 - Step 6: Final answer
x = 1,994,373.72
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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.