Finding the Fourth Proportional to 3,228,804.12, 4,455,585.09 and 1,778,468.34
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Solution
The fourth proportional to 3,228,804.12, 4,455,585.09 and 1,778,468.34 is: 2,454,195.65
Step by Step Solution
- Step 1: Write the proportion equation
3,228,804.12 : 4,455,585.09 = 1,778,468.34 : x - Step 2: Convert to fraction form
3,228,804.12/4,455,585.09 = 1,778,468.34/x - Step 3: Cross multiply
3,228,804.12x = 4,455,585.09 × 1,778,468.34 - Step 4: Simplify right side
3,228,804.12x = 7,924,117,018,741.05 - Step 5: Solve for x
x = 7,924,117,018,741.05/3,228,804.12 - Step 6: Final answer
x = 2,454,195.65
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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.