Finding the Fourth Proportional to 441,030.12, 608,794.68 and 312,639.66
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Solution
The fourth proportional to 441,030.12, 608,794.68 and 312,639.66 is: 431,565.45
Step by Step Solution
- Step 1: Write the proportion equation
441,030.12 : 608,794.68 = 312,639.66 : x - Step 2: Convert to fraction form
441,030.12/608,794.68 = 312,639.66/x - Step 3: Cross multiply
441,030.12x = 608,794.68 × 312,639.66 - Step 4: Simplify right side
441,030.12x = 190,333,361,765.01 - Step 5: Solve for x
x = 190,333,361,765.01/441,030.12 - Step 6: Final answer
x = 431,565.45
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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.