Finding the Fourth Proportional to 520,408.19, 718,362.07 and 339,164.82
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Solution
The fourth proportional to 520,408.19, 718,362.07 and 339,164.82 is: 468,176.99
Step by Step Solution
- Step 1: Write the proportion equation
520,408.19 : 718,362.07 = 339,164.82 : x - Step 2: Convert to fraction form
520,408.19/718,362.07 = 339,164.82/x - Step 3: Cross multiply
520,408.19x = 718,362.07 × 339,164.82 - Step 4: Simplify right side
520,408.19x = 243,643,141,318.47 - Step 5: Solve for x
x = 243,643,141,318.47/520,408.19 - Step 6: Final answer
x = 468,176.99
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.