Finding the Fourth Proportional to 521,123.84, 781,731.84 and 284,364.80
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Solution
The fourth proportional to 521,123.84, 781,731.84 and 284,364.80 is: 426,572.34
Step by Step Solution
- Step 1: Write the proportion equation
521,123.84 : 781,731.84 = 284,364.80 : x - Step 2: Convert to fraction form
521,123.84/781,731.84 = 284,364.80/x - Step 3: Cross multiply
521,123.84x = 781,731.84 × 284,364.80 - Step 4: Simplify right side
521,123.84x = 222,297,018,335.23 - Step 5: Solve for x
x = 222,297,018,335.23/521,123.84 - Step 6: Final answer
x = 426,572.34
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.