Finding the Fourth Proportional to 739,210.92, 1,020,109.14 and 399,679.08
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Solution
The fourth proportional to 739,210.92, 1,020,109.14 and 399,679.08 is: 551,556.09
Step by Step Solution
- Step 1: Write the proportion equation
739,210.92 : 1,020,109.14 = 399,679.08 : x - Step 2: Convert to fraction form
739,210.92/1,020,109.14 = 399,679.08/x - Step 3: Cross multiply
739,210.92x = 1,020,109.14 × 399,679.08 - Step 4: Simplify right side
739,210.92x = 407,716,282,574.79 - Step 5: Solve for x
x = 407,716,282,574.79/739,210.92 - Step 6: Final answer
x = 551,556.09
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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.