Finding the Fourth Proportional to 633,698.78, 874,539.33 and 361,853.99
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Solution
The fourth proportional to 633,698.78, 874,539.33 and 361,853.99 is: 499,378.51
Step by Step Solution
- Step 1: Write the proportion equation
633,698.78 : 874,539.33 = 361,853.99 : x - Step 2: Convert to fraction form
633,698.78/874,539.33 = 361,853.99/x - Step 3: Cross multiply
633,698.78x = 874,539.33 × 361,853.99 - Step 4: Simplify right side
633,698.78x = 316,455,548,158.78 - Step 5: Solve for x
x = 316,455,548,158.78/633,698.78 - Step 6: Final answer
x = 499,378.51
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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.