Finding the Fourth Proportional to 551,715.60, 761,285.88 and 319,135.44
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Solution
The fourth proportional to 551,715.60, 761,285.88 and 319,135.44 is: 440,359.68
Step by Step Solution
- Step 1: Write the proportion equation
551,715.60 : 761,285.88 = 319,135.44 : x - Step 2: Convert to fraction form
551,715.60/761,285.88 = 319,135.44/x - Step 3: Cross multiply
551,715.60x = 761,285.88 × 319,135.44 - Step 4: Simplify right side
551,715.60x = 242,953,304,279.59 - Step 5: Solve for x
x = 242,953,304,279.59/551,715.60 - Step 6: Final answer
x = 440,359.68
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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.