Finding the Fourth Proportional to 612,615.64, 845,285.70 and 357,917.62
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Solution
The fourth proportional to 612,615.64, 845,285.70 and 357,917.62 is: 493,853.94
Step by Step Solution
- Step 1: Write the proportion equation
612,615.64 : 845,285.70 = 357,917.62 : x - Step 2: Convert to fraction form
612,615.64/845,285.70 = 357,917.62/x - Step 3: Cross multiply
612,615.64x = 845,285.70 × 357,917.62 - Step 4: Simplify right side
612,615.64x = 302,542,645,964.03 - Step 5: Solve for x
x = 302,542,645,964.03/612,615.64 - Step 6: Final answer
x = 493,853.94
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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.