Finding the Fourth Proportional to 3,178,358.76, 4,768,124.58 and 1,048,590.12
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Solution
The fourth proportional to 3,178,358.76, 4,768,124.58 and 1,048,590.12 is: 1,573,078.66
Step by Step Solution
- Step 1: Write the proportion equation
3,178,358.76 : 4,768,124.58 = 1,048,590.12 : x - Step 2: Convert to fraction form
3,178,358.76/4,768,124.58 = 1,048,590.12/x - Step 3: Cross multiply
3,178,358.76x = 4,768,124.58 × 1,048,590.12 - Step 4: Simplify right side
3,178,358.76x = 4,999,808,325,517.15 - Step 5: Solve for x
x = 4,999,808,325,517.15/3,178,358.76 - Step 6: Final answer
x = 1,573,078.66
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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.