Finding the Fourth Proportional to 520,075.70, 717,705.44 and 290,632.99
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Solution
The fourth proportional to 520,075.70, 717,705.44 and 290,632.99 is: 401,074.07
Step by Step Solution
- Step 1: Write the proportion equation
520,075.70 : 717,705.44 = 290,632.99 : x - Step 2: Convert to fraction form
520,075.70/717,705.44 = 290,632.99/x - Step 3: Cross multiply
520,075.70x = 717,705.44 × 290,632.99 - Step 4: Simplify right side
520,075.70x = 208,588,874,735.68 - Step 5: Solve for x
x = 208,588,874,735.68/520,075.70 - Step 6: Final answer
x = 401,074.07
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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.