Finding the Fourth Proportional to 495,959.13, 684,549.12 and 305,143.38
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Solution
The fourth proportional to 495,959.13, 684,549.12 and 305,143.38 is: 421,175.09
Step by Step Solution
- Step 1: Write the proportion equation
495,959.13 : 684,549.12 = 305,143.38 : x - Step 2: Convert to fraction form
495,959.13/684,549.12 = 305,143.38/x - Step 3: Cross multiply
495,959.13x = 684,549.12 × 305,143.38 - Step 4: Simplify right side
495,959.13x = 208,885,632,252.83 - Step 5: Solve for x
x = 208,885,632,252.83/495,959.13 - Step 6: Final answer
x = 421,175.09
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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.