Finding the Fourth Proportional to 709,832.79, 979,571.48 and 455,184.99
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Solution
The fourth proportional to 709,832.79, 979,571.48 and 455,184.99 is: 628,156.71
Step by Step Solution
- Step 1: Write the proportion equation
709,832.79 : 979,571.48 = 455,184.99 : x - Step 2: Convert to fraction form
709,832.79/979,571.48 = 455,184.99/x - Step 3: Cross multiply
709,832.79x = 979,571.48 × 455,184.99 - Step 4: Simplify right side
709,832.79x = 445,886,232,052.16 - Step 5: Solve for x
x = 445,886,232,052.16/709,832.79 - Step 6: Final answer
x = 628,156.71
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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.