Finding the Fourth Proportional to 520,129.40, 779,027.70 and 520,129.40
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Solution
The fourth proportional to 520,129.40, 779,027.70 and 520,129.40 is: 779,027.70
Step by Step Solution
- Step 1: Write the proportion equation
520,129.40 : 779,027.70 = 520,129.40 : x - Step 2: Convert to fraction form
520,129.40/779,027.70 = 520,129.40/x - Step 3: Cross multiply
520,129.40x = 779,027.70 × 520,129.40 - Step 4: Simplify right side
520,129.40x = 405,195,210,184.38 - Step 5: Solve for x
x = 405,195,210,184.38/520,129.40 - Step 6: Final answer
x = 779,027.70
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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.