Finding the Fourth Proportional to 2,988,385.76, 4,124,037.84 and 1,630,257.68
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Solution
The fourth proportional to 2,988,385.76, 4,124,037.84 and 1,630,257.68 is: 2,249,791.33
Step by Step Solution
- Step 1: Write the proportion equation
2,988,385.76 : 4,124,037.84 = 1,630,257.68 : x - Step 2: Convert to fraction form
2,988,385.76/4,124,037.84 = 1,630,257.68/x - Step 3: Cross multiply
2,988,385.76x = 4,124,037.84 × 1,630,257.68 - Step 4: Simplify right side
2,988,385.76x = 6,723,244,361,270.61 - Step 5: Solve for x
x = 6,723,244,361,270.61/2,988,385.76 - Step 6: Final answer
x = 2,249,791.33
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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.