Finding the Fourth Proportional to 3,535,657.92, 4,879,325.16 and 1,987,188.96
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Solution
The fourth proportional to 3,535,657.92, 4,879,325.16 and 1,987,188.96 is: 2,742,386.65
Step by Step Solution
- Step 1: Write the proportion equation
3,535,657.92 : 4,879,325.16 = 1,987,188.96 : x - Step 2: Convert to fraction form
3,535,657.92/4,879,325.16 = 1,987,188.96/x - Step 3: Cross multiply
3,535,657.92x = 4,879,325.16 × 1,987,188.96 - Step 4: Simplify right side
3,535,657.92x = 9,696,141,090,202.24 - Step 5: Solve for x
x = 9,696,141,090,202.24/3,535,657.92 - Step 6: Final answer
x = 2,742,386.65
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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.