Finding the Fourth Proportional to 778,974.60, 1,168,850.70 and 442,273.80
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Solution
The fourth proportional to 778,974.60, 1,168,850.70 and 442,273.80 is: 663,631.45
Step by Step Solution
- Step 1: Write the proportion equation
778,974.60 : 1,168,850.70 = 442,273.80 : x - Step 2: Convert to fraction form
778,974.60/1,168,850.70 = 442,273.80/x - Step 3: Cross multiply
778,974.60x = 1,168,850.70 × 442,273.80 - Step 4: Simplify right side
778,974.60x = 516,952,040,721.66 - Step 5: Solve for x
x = 516,952,040,721.66/778,974.60 - Step 6: Final answer
x = 663,631.45
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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.