Finding the Fourth Proportional to 874,501.60, 1,310,974.80 and 519,138.40
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Solution
The fourth proportional to 874,501.60, 1,310,974.80 and 519,138.40 is: 778,245.99
Step by Step Solution
- Step 1: Write the proportion equation
874,501.60 : 1,310,974.80 = 519,138.40 : x - Step 2: Convert to fraction form
874,501.60/1,310,974.80 = 519,138.40/x - Step 3: Cross multiply
874,501.60x = 1,310,974.80 × 519,138.40 - Step 4: Simplify right side
874,501.60x = 680,577,360,112.32 - Step 5: Solve for x
x = 680,577,360,112.32/874,501.60 - Step 6: Final answer
x = 778,245.99
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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.