Finding the Fourth Proportional to 572,677.12, 790,295.04 and 318,028.80
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Solution
The fourth proportional to 572,677.12, 790,295.04 and 318,028.80 is: 438,880.09
Step by Step Solution
- Step 1: Write the proportion equation
572,677.12 : 790,295.04 = 318,028.80 : x - Step 2: Convert to fraction form
572,677.12/790,295.04 = 318,028.80/x - Step 3: Cross multiply
572,677.12x = 790,295.04 × 318,028.80 - Step 4: Simplify right side
572,677.12x = 251,336,583,217.15 - Step 5: Solve for x
x = 251,336,583,217.15/572,677.12 - Step 6: Final answer
x = 438,880.09
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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.