Finding the Fourth Proportional to 1,878,269.41, 2,813,625.82 and 1,423,638.18
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Solution
The fourth proportional to 1,878,269.41, 2,813,625.82 and 1,423,638.18 is: 2,132,593.50
Step by Step Solution
- Step 1: Write the proportion equation
1,878,269.41 : 2,813,625.82 = 1,423,638.18 : x - Step 2: Convert to fraction form
1,878,269.41/2,813,625.82 = 1,423,638.18/x - Step 3: Cross multiply
1,878,269.41x = 2,813,625.82 × 1,423,638.18 - Step 4: Simplify right side
1,878,269.41x = 4,005,585,143,365.36 - Step 5: Solve for x
x = 4,005,585,143,365.36/1,878,269.41 - Step 6: Final answer
x = 2,132,593.50
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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.