Finding the Fourth Proportional to 868,135.80, 1,302,203.70 and 728,167.80
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Solution
The fourth proportional to 868,135.80, 1,302,203.70 and 728,167.80 is: 1,092,251.70
Step by Step Solution
- Step 1: Write the proportion equation
868,135.80 : 1,302,203.70 = 728,167.80 : x - Step 2: Convert to fraction form
868,135.80/1,302,203.70 = 728,167.80/x - Step 3: Cross multiply
868,135.80x = 1,302,203.70 × 728,167.80 - Step 4: Simplify right side
868,135.80x = 948,222,803,380.86 - Step 5: Solve for x
x = 948,222,803,380.86/868,135.80 - Step 6: Final answer
x = 1,092,251.70
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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.