Finding the Fourth Proportional to 3,178,355.76, 4,768,120.08 and 1,048,587.12
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Solution
The fourth proportional to 3,178,355.76, 4,768,120.08 and 1,048,587.12 is: 1,573,074.16
Step by Step Solution
- Step 1: Write the proportion equation
3,178,355.76 : 4,768,120.08 = 1,048,587.12 : x - Step 2: Convert to fraction form
3,178,355.76/4,768,120.08 = 1,048,587.12/x - Step 3: Cross multiply
3,178,355.76x = 4,768,120.08 × 1,048,587.12 - Step 4: Simplify right side
3,178,355.76x = 4,999,789,302,501.37 - Step 5: Solve for x
x = 4,999,789,302,501.37/3,178,355.76 - Step 6: Final answer
x = 1,573,074.16
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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.