Finding the Fourth Proportional to 636,976.60, 879,001.36 and 346,589.37
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Solution
The fourth proportional to 636,976.60, 879,001.36 and 346,589.37 is: 478,278.99
Step by Step Solution
- Step 1: Write the proportion equation
636,976.60 : 879,001.36 = 346,589.37 : x - Step 2: Convert to fraction form
636,976.60/879,001.36 = 346,589.37/x - Step 3: Cross multiply
636,976.60x = 879,001.36 × 346,589.37 - Step 4: Simplify right side
636,976.60x = 304,652,527,591.54 - Step 5: Solve for x
x = 304,652,527,591.54/636,976.60 - Step 6: Final answer
x = 478,278.99
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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.