Finding the Fourth Proportional to 1,023,670.40, 1,535,620.80 and 313,692.80
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Solution
The fourth proportional to 1,023,670.40, 1,535,620.80 and 313,692.80 is: 470,574.50
Step by Step Solution
- Step 1: Write the proportion equation
1,023,670.40 : 1,535,620.80 = 313,692.80 : x - Step 2: Convert to fraction form
1,023,670.40/1,535,620.80 = 313,692.80/x - Step 3: Cross multiply
1,023,670.40x = 1,535,620.80 × 313,692.80 - Step 4: Simplify right side
1,023,670.40x = 481,713,188,490.24 - Step 5: Solve for x
x = 481,713,188,490.24/1,023,670.40 - Step 6: Final answer
x = 470,574.50
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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.