Finding the Fourth Proportional to 440,344.80, 607,678.93 and 239,140.80
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Solution
The fourth proportional to 440,344.80, 607,678.93 and 239,140.80 is: 330,015.99
Step by Step Solution
- Step 1: Write the proportion equation
440,344.80 : 607,678.93 = 239,140.80 : x - Step 2: Convert to fraction form
440,344.80/607,678.93 = 239,140.80/x - Step 3: Cross multiply
440,344.80x = 607,678.93 × 239,140.80 - Step 4: Simplify right side
440,344.80x = 145,320,822,424.95 - Step 5: Solve for x
x = 145,320,822,424.95/440,344.80 - Step 6: Final answer
x = 330,015.99
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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.