Finding the Fourth Proportional to 2,718,620.64, 4,078,421.28 and 1,120,294.08
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Solution
The fourth proportional to 2,718,620.64, 4,078,421.28 and 1,120,294.08 is: 1,680,643.17
Step by Step Solution
- Step 1: Write the proportion equation
2,718,620.64 : 4,078,421.28 = 1,120,294.08 : x - Step 2: Convert to fraction form
2,718,620.64/4,078,421.28 = 1,120,294.08/x - Step 3: Cross multiply
2,718,620.64x = 4,078,421.28 × 1,120,294.08 - Step 4: Simplify right side
2,718,620.64x = 4,569,031,215,730.02 - Step 5: Solve for x
x = 4,569,031,215,730.02/2,718,620.64 - Step 6: Final answer
x = 1,680,643.17
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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.