Finding the Fourth Proportional to 2,069,625.20, 3,107,980.20 and 1,124,841.20
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Solution
The fourth proportional to 2,069,625.20, 3,107,980.20 and 1,124,841.20 is: 1,689,187.09
Step by Step Solution
- Step 1: Write the proportion equation
2,069,625.20 : 3,107,980.20 = 1,124,841.20 : x - Step 2: Convert to fraction form
2,069,625.20/3,107,980.20 = 1,124,841.20/x - Step 3: Cross multiply
2,069,625.20x = 3,107,980.20 × 1,124,841.20 - Step 4: Simplify right side
2,069,625.20x = 3,495,984,177,744.24 - Step 5: Solve for x
x = 3,495,984,177,744.24/2,069,625.20 - Step 6: Final answer
x = 1,689,187.09
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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.