Finding the Fourth Proportional to 774,051.19, 1,068,347.81 and 447,378.08
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Solution
The fourth proportional to 774,051.19, 1,068,347.81 and 447,378.08 is: 617,472.59
Step by Step Solution
- Step 1: Write the proportion equation
774,051.19 : 1,068,347.81 = 447,378.08 : x - Step 2: Convert to fraction form
774,051.19/1,068,347.81 = 447,378.08/x - Step 3: Cross multiply
774,051.19x = 1,068,347.81 × 447,378.08 - Step 4: Simplify right side
774,051.19x = 477,955,387,786.71 - Step 5: Solve for x
x = 477,955,387,786.71/774,051.19 - Step 6: Final answer
x = 617,472.59
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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.