Finding the Fourth Proportional to 531,643.36, 733,658.64 and 289,927.84
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Solution
The fourth proportional to 531,643.36, 733,658.64 and 289,927.84 is: 400,095.40
Step by Step Solution
- Step 1: Write the proportion equation
531,643.36 : 733,658.64 = 289,927.84 : x - Step 2: Convert to fraction form
531,643.36/733,658.64 = 289,927.84/x - Step 3: Cross multiply
531,643.36x = 733,658.64 × 289,927.84 - Step 4: Simplify right side
531,643.36x = 212,708,064,792.54 - Step 5: Solve for x
x = 212,708,064,792.54/531,643.36 - Step 6: Final answer
x = 400,095.40
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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.