Finding the Fourth Proportional to 1,990,871.08, 2,986,317.30 and 494,963.08
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Solution
The fourth proportional to 1,990,871.08, 2,986,317.30 and 494,963.08 is: 742,447.28
Step by Step Solution
- Step 1: Write the proportion equation
1,990,871.08 : 2,986,317.30 = 494,963.08 : x - Step 2: Convert to fraction form
1,990,871.08/2,986,317.30 = 494,963.08/x - Step 3: Cross multiply
1,990,871.08x = 2,986,317.30 × 494,963.08 - Step 4: Simplify right side
1,990,871.08x = 1,478,116,808,665.28 - Step 5: Solve for x
x = 1,478,116,808,665.28/1,990,871.08 - Step 6: Final answer
x = 742,447.28
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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.