Finding the Fourth Proportional to 561,475.88, 774,873.56 and 316,521.08
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Solution
The fourth proportional to 561,475.88, 774,873.56 and 316,521.08 is: 436,819.86
Step by Step Solution
- Step 1: Write the proportion equation
561,475.88 : 774,873.56 = 316,521.08 : x - Step 2: Convert to fraction form
561,475.88/774,873.56 = 316,521.08/x - Step 3: Cross multiply
561,475.88x = 774,873.56 × 316,521.08 - Step 4: Simplify right side
561,475.88x = 245,263,816,074.65 - Step 5: Solve for x
x = 245,263,816,074.65/561,475.88 - Step 6: Final answer
x = 436,819.86
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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.