Finding the Fourth Proportional to 3,487,113.84, 4,812,274.72 and 1,917,312.12
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Solution
The fourth proportional to 3,487,113.84, 4,812,274.72 and 1,917,312.12 is: 2,645,922.41
Step by Step Solution
- Step 1: Write the proportion equation
3,487,113.84 : 4,812,274.72 = 1,917,312.12 : x - Step 2: Convert to fraction form
3,487,113.84/4,812,274.72 = 1,917,312.12/x - Step 3: Cross multiply
3,487,113.84x = 4,812,274.72 × 1,917,312.12 - Step 4: Simplify right side
3,487,113.84x = 9,226,632,645,425.61 - Step 5: Solve for x
x = 9,226,632,645,425.61/3,487,113.84 - Step 6: Final answer
x = 2,645,922.41
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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.