Finding the Fourth Proportional to 1,993,178.08, 2,990,242.28 and 645,341.08
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Solution
The fourth proportional to 1,993,178.08, 2,990,242.28 and 645,341.08 is: 968,165.46
Step by Step Solution
- Step 1: Write the proportion equation
1,993,178.08 : 2,990,242.28 = 645,341.08 : x - Step 2: Convert to fraction form
1,993,178.08/2,990,242.28 = 645,341.08/x - Step 3: Cross multiply
1,993,178.08x = 2,990,242.28 × 645,341.08 - Step 4: Simplify right side
1,993,178.08x = 1,929,726,182,436.86 - Step 5: Solve for x
x = 1,929,726,182,436.86/1,993,178.08 - Step 6: Final answer
x = 968,165.46
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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.