Finding the Fourth Proportional to 783,436.80, 1,081,132.80 and 425,740.80
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Solution
The fourth proportional to 783,436.80, 1,081,132.80 and 425,740.80 is: 587,516.88
Step by Step Solution
- Step 1: Write the proportion equation
783,436.80 : 1,081,132.80 = 425,740.80 : x - Step 2: Convert to fraction form
783,436.80/1,081,132.80 = 425,740.80/x - Step 3: Cross multiply
783,436.80x = 1,081,132.80 × 425,740.80 - Step 4: Simplify right side
783,436.80x = 460,282,343,178.24 - Step 5: Solve for x
x = 460,282,343,178.24/783,436.80 - Step 6: Final answer
x = 587,516.88
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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.