Finding the Fourth Proportional to 1,617,636.40, 2,425,579.80 and 671,102.80
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Solution
The fourth proportional to 1,617,636.40, 2,425,579.80 and 671,102.80 is: 1,006,291.27
Step by Step Solution
- Step 1: Write the proportion equation
1,617,636.40 : 2,425,579.80 = 671,102.80 : x - Step 2: Convert to fraction form
1,617,636.40/2,425,579.80 = 671,102.80/x - Step 3: Cross multiply
1,617,636.40x = 2,425,579.80 × 671,102.80 - Step 4: Simplify right side
1,617,636.40x = 1,627,813,395,403.44 - Step 5: Solve for x
x = 1,627,813,395,403.44/1,617,636.40 - Step 6: Final answer
x = 1,006,291.27
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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.