Finding the Fourth Proportional to 571,407.43, 788,622.64 and 353,685.99
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Solution
The fourth proportional to 571,407.43, 788,622.64 and 353,685.99 is: 488,136.42
Step by Step Solution
- Step 1: Write the proportion equation
571,407.43 : 788,622.64 = 353,685.99 : x - Step 2: Convert to fraction form
571,407.43/788,622.64 = 353,685.99/x - Step 3: Cross multiply
571,407.43x = 788,622.64 × 353,685.99 - Step 4: Simplify right side
571,407.43x = 278,924,779,164.81 - Step 5: Solve for x
x = 278,924,779,164.81/571,407.43 - Step 6: Final answer
x = 488,136.42
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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.