Finding the Fourth Proportional to 665,305.30, 918,121.68 and 359,381.68
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Solution
The fourth proportional to 665,305.30, 918,121.68 and 359,381.68 is: 495,946.92
Step by Step Solution
- Step 1: Write the proportion equation
665,305.30 : 918,121.68 = 359,381.68 : x - Step 2: Convert to fraction form
665,305.30/918,121.68 = 359,381.68/x - Step 3: Cross multiply
665,305.30x = 918,121.68 × 359,381.68 - Step 4: Simplify right side
665,305.30x = 329,956,111,802.82 - Step 5: Solve for x
x = 329,956,111,802.82/665,305.30 - Step 6: Final answer
x = 495,946.92
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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.