Finding the Fourth Proportional to 611,138.17, 843,357.99 and 339,190.12
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Solution
The fourth proportional to 611,138.17, 843,357.99 and 339,190.12 is: 468,075.33
Step by Step Solution
- Step 1: Write the proportion equation
611,138.17 : 843,357.99 = 339,190.12 : x - Step 2: Convert to fraction form
611,138.17/843,357.99 = 339,190.12/x - Step 3: Cross multiply
611,138.17x = 843,357.99 × 339,190.12 - Step 4: Simplify right side
611,138.17x = 286,058,697,831.06 - Step 5: Solve for x
x = 286,058,697,831.06/611,138.17 - Step 6: Final answer
x = 468,075.33
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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.