Finding the Fourth Proportional to 1,335,423.80, 2,003,135.70 and 802,670.60
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Solution
The fourth proportional to 1,335,423.80, 2,003,135.70 and 802,670.60 is: 1,204,005.90
Step by Step Solution
- Step 1: Write the proportion equation
1,335,423.80 : 2,003,135.70 = 802,670.60 : x - Step 2: Convert to fraction form
1,335,423.80/2,003,135.70 = 802,670.60/x - Step 3: Cross multiply
1,335,423.80x = 2,003,135.70 × 802,670.60 - Step 4: Simplify right side
1,335,423.80x = 1,607,858,134,200.42 - Step 5: Solve for x
x = 1,607,858,134,200.42/1,335,423.80 - Step 6: Final answer
x = 1,204,005.90
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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.