Finding the Fourth Proportional to 520,120.47, 780,406.11 and 183,401.67
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Solution
The fourth proportional to 520,120.47, 780,406.11 and 183,401.67 is: 275,181.99
Step by Step Solution
- Step 1: Write the proportion equation
520,120.47 : 780,406.11 = 183,401.67 : x - Step 2: Convert to fraction form
520,120.47/780,406.11 = 183,401.67/x - Step 3: Cross multiply
520,120.47x = 780,406.11 × 183,401.67 - Step 4: Simplify right side
520,120.47x = 143,127,783,852.20 - Step 5: Solve for x
x = 143,127,783,852.20/520,120.47 - Step 6: Final answer
x = 275,181.99
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1.5x scale
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.