Finding the Fourth Proportional to 1,993,221.99, 2,990,309.27 and 645,386.18
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Solution
The fourth proportional to 1,993,221.99, 2,990,309.27 and 645,386.18 is: 968,233.48
Step by Step Solution
- Step 1: Write the proportion equation
1,993,221.99 : 2,990,309.27 = 645,386.18 : x - Step 2: Convert to fraction form
1,993,221.99/2,990,309.27 = 645,386.18/x - Step 3: Cross multiply
1,993,221.99x = 2,990,309.27 × 645,386.18 - Step 4: Simplify right side
1,993,221.99x = 1,929,904,258,605.41 - Step 5: Solve for x
x = 1,929,904,258,605.41/1,993,221.99 - Step 6: Final answer
x = 968,233.48
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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.