Finding the Fourth Proportional to 465,368.77, 642,453.80 and 313,206.88
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Solution
The fourth proportional to 465,368.77, 642,453.80 and 313,206.88 is: 432,390.32
Step by Step Solution
- Step 1: Write the proportion equation
465,368.77 : 642,453.80 = 313,206.88 : x - Step 2: Convert to fraction form
465,368.77/642,453.80 = 313,206.88/x - Step 3: Cross multiply
465,368.77x = 642,453.80 × 313,206.88 - Step 4: Simplify right side
465,368.77x = 201,220,949,110.36 - Step 5: Solve for x
x = 201,220,949,110.36/465,368.77 - Step 6: Final answer
x = 432,390.32
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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.