Finding the Fourth Proportional to 854,515.49, 1,281,378.71 and 314,636.18
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Solution
The fourth proportional to 854,515.49, 1,281,378.71 and 314,636.18 is: 471,809.00
Step by Step Solution
- Step 1: Write the proportion equation
854,515.49 : 1,281,378.71 = 314,636.18 : x - Step 2: Convert to fraction form
854,515.49/1,281,378.71 = 314,636.18/x - Step 3: Cross multiply
854,515.49x = 1,281,378.71 × 314,636.18 - Step 4: Simplify right side
854,515.49x = 403,168,094,467.65 - Step 5: Solve for x
x = 403,168,094,467.65/854,515.49 - Step 6: Final answer
x = 471,809.00
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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.