Finding the Fourth Proportional to 663,986.26, 916,303.94 and 362,186.74
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Solution
The fourth proportional to 663,986.26, 916,303.94 and 362,186.74 is: 499,819.28
Step by Step Solution
- Step 1: Write the proportion equation
663,986.26 : 916,303.94 = 362,186.74 : x - Step 2: Convert to fraction form
663,986.26/916,303.94 = 362,186.74/x - Step 3: Cross multiply
663,986.26x = 916,303.94 × 362,186.74 - Step 4: Simplify right side
663,986.26x = 331,873,136,877.76 - Step 5: Solve for x
x = 331,873,136,877.76/663,986.26 - Step 6: Final answer
x = 499,819.28
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1.5x scale
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.