Finding the Fourth Proportional to 561,521.60, 774,898.08 and 306,872.79
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Solution
The fourth proportional to 561,521.60, 774,898.08 and 306,872.79 is: 423,483.50
Step by Step Solution
- Step 1: Write the proportion equation
561,521.60 : 774,898.08 = 306,872.79 : x - Step 2: Convert to fraction form
561,521.60/774,898.08 = 306,872.79/x - Step 3: Cross multiply
561,521.60x = 774,898.08 × 306,872.79 - Step 4: Simplify right side
561,521.60x = 237,795,131,900.75 - Step 5: Solve for x
x = 237,795,131,900.75/561,521.60 - Step 6: Final answer
x = 423,483.50
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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.