Finding the Fourth Proportional to 551,235.36, 760,695.12 and 309,519.84
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Solution
The fourth proportional to 551,235.36, 760,695.12 and 309,519.84 is: 427,131.95
Step by Step Solution
- Step 1: Write the proportion equation
551,235.36 : 760,695.12 = 309,519.84 : x - Step 2: Convert to fraction form
551,235.36/760,695.12 = 309,519.84/x - Step 3: Cross multiply
551,235.36x = 760,695.12 × 309,519.84 - Step 4: Simplify right side
551,235.36x = 235,450,231,831.18 - Step 5: Solve for x
x = 235,450,231,831.18/551,235.36 - Step 6: Final answer
x = 427,131.95
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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.