Finding the Fourth Proportional to 2,387,963.99, 3,575,219.55 and 2,145,826.19
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Solution
The fourth proportional to 2,387,963.99, 3,575,219.55 and 2,145,826.19 is: 3,212,694.90
Step by Step Solution
- Step 1: Write the proportion equation
2,387,963.99 : 3,575,219.55 = 2,145,826.19 : x - Step 2: Convert to fraction form
2,387,963.99/3,575,219.55 = 2,145,826.19/x - Step 3: Cross multiply
2,387,963.99x = 3,575,219.55 × 2,145,826.19 - Step 4: Simplify right side
2,387,963.99x = 7,671,799,727,513.92 - Step 5: Solve for x
x = 7,671,799,727,513.92/2,387,963.99 - Step 6: Final answer
x = 3,212,694.90
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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.