Finding the Fourth Proportional to 1,553,238.68, 2,328,830.12 and 743,742.50
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Solution
The fourth proportional to 1,553,238.68, 2,328,830.12 and 743,742.50 is: 1,115,121.55
Step by Step Solution
- Step 1: Write the proportion equation
1,553,238.68 : 2,328,830.12 = 743,742.50 : x - Step 2: Convert to fraction form
1,553,238.68/2,328,830.12 = 743,742.50/x - Step 3: Cross multiply
1,553,238.68x = 2,328,830.12 × 743,742.50 - Step 4: Simplify right side
1,553,238.68x = 1,732,049,931,805.39 - Step 5: Solve for x
x = 1,732,049,931,805.39/1,553,238.68 - Step 6: Final answer
x = 1,115,121.55
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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.