Finding the Fourth Proportional to 812,682.16, 1,219,272.84 and 363,781.36
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Solution
The fourth proportional to 812,682.16, 1,219,272.84 and 363,781.36 is: 545,783.77
Step by Step Solution
- Step 1: Write the proportion equation
812,682.16 : 1,219,272.84 = 363,781.36 : x - Step 2: Convert to fraction form
812,682.16/1,219,272.84 = 363,781.36/x - Step 3: Cross multiply
812,682.16x = 1,219,272.84 × 363,781.36 - Step 4: Simplify right side
812,682.16x = 443,548,731,946.26 - Step 5: Solve for x
x = 443,548,731,946.26/812,682.16 - Step 6: Final answer
x = 545,783.77
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1.5x scale
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.