Finding the Fourth Proportional to 1,750,385.10, 2,625,577.65 and 420,689.10
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Solution
The fourth proportional to 1,750,385.10, 2,625,577.65 and 420,689.10 is: 631,033.65
Step by Step Solution
- Step 1: Write the proportion equation
1,750,385.10 : 2,625,577.65 = 420,689.10 : x - Step 2: Convert to fraction form
1,750,385.10/2,625,577.65 = 420,689.10/x - Step 3: Cross multiply
1,750,385.10x = 2,625,577.65 × 420,689.10 - Step 4: Simplify right side
1,750,385.10x = 1,104,551,898,558.62 - Step 5: Solve for x
x = 1,104,551,898,558.62/1,750,385.10 - Step 6: Final answer
x = 631,033.65
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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.