Finding the Fourth Proportional to 894,839.63, 1,234,878.89 and 492,431.63
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Solution
The fourth proportional to 894,839.63, 1,234,878.89 and 492,431.63 is: 679,555.75
Step by Step Solution
- Step 1: Write the proportion equation
894,839.63 : 1,234,878.89 = 492,431.63 : x - Step 2: Convert to fraction form
894,839.63/1,234,878.89 = 492,431.63/x - Step 3: Cross multiply
894,839.63x = 1,234,878.89 × 492,431.63 - Step 4: Simplify right side
894,839.63x = 608,093,416,018.74 - Step 5: Solve for x
x = 608,093,416,018.74/894,839.63 - Step 6: Final answer
x = 679,555.75
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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.