Finding the Fourth Proportional to 573,447.13, 791,357.96 and 318,798.31
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Solution
The fourth proportional to 573,447.13, 791,357.96 and 318,798.31 is: 439,942.18
Step by Step Solution
- Step 1: Write the proportion equation
573,447.13 : 791,357.96 = 318,798.31 : x - Step 2: Convert to fraction form
573,447.13/791,357.96 = 318,798.31/x - Step 3: Cross multiply
573,447.13x = 791,357.96 × 318,798.31 - Step 4: Simplify right side
573,447.13x = 252,283,580,253.05 - Step 5: Solve for x
x = 252,283,580,253.05/573,447.13 - Step 6: Final answer
x = 439,942.18
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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.