Finding the Fourth Proportional to 2,915,145.84, 4,022,890.74 and 1,625,985.21
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Solution
The fourth proportional to 2,915,145.84, 4,022,890.74 and 1,625,985.21 is: 2,243,853.72
Step by Step Solution
- Step 1: Write the proportion equation
2,915,145.84 : 4,022,890.74 = 1,625,985.21 : x - Step 2: Convert to fraction form
2,915,145.84/4,022,890.74 = 1,625,985.21/x - Step 3: Cross multiply
2,915,145.84x = 4,022,890.74 × 1,625,985.21 - Step 4: Simplify right side
2,915,145.84x = 6,541,160,844,685.96 - Step 5: Solve for x
x = 6,541,160,844,685.96/2,915,145.84 - Step 6: Final answer
x = 2,243,853.72
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.