Finding the Fourth Proportional to 418,367.16, 628,070.76 and 416,449.08
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Solution
The fourth proportional to 418,367.16, 628,070.76 and 416,449.08 is: 625,191.26
Step by Step Solution
- Step 1: Write the proportion equation
418,367.16 : 628,070.76 = 416,449.08 : x - Step 2: Convert to fraction form
418,367.16/628,070.76 = 416,449.08/x - Step 3: Cross multiply
418,367.16x = 628,070.76 × 416,449.08 - Step 4: Simplify right side
418,367.16x = 261,559,490,176.90 - Step 5: Solve for x
x = 261,559,490,176.90/418,367.16 - Step 6: Final answer
x = 625,191.26
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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.