Finding the Fourth Proportional to 665,228.94, 918,015.63 and 359,305.26
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Solution
The fourth proportional to 665,228.94, 918,015.63 and 359,305.26 is: 495,841.09
Step by Step Solution
- Step 1: Write the proportion equation
665,228.94 : 918,015.63 = 359,305.26 : x - Step 2: Convert to fraction form
665,228.94/918,015.63 = 359,305.26/x - Step 3: Cross multiply
665,228.94x = 918,015.63 × 359,305.26 - Step 4: Simplify right side
665,228.94x = 329,847,844,621.21 - Step 5: Solve for x
x = 329,847,844,621.21/665,228.94 - Step 6: Final answer
x = 495,841.09
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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.