Finding the Fourth Proportional to 712,237.80, 1,068,356.70 and 213,601.80
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Solution
The fourth proportional to 712,237.80, 1,068,356.70 and 213,601.80 is: 320,402.70
Step by Step Solution
- Step 1: Write the proportion equation
712,237.80 : 1,068,356.70 = 213,601.80 : x - Step 2: Convert to fraction form
712,237.80/1,068,356.70 = 213,601.80/x - Step 3: Cross multiply
712,237.80x = 1,068,356.70 × 213,601.80 - Step 4: Simplify right side
712,237.80x = 228,202,914,162.06 - Step 5: Solve for x
x = 228,202,914,162.06/712,237.80 - Step 6: Final answer
x = 320,402.70
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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.