Finding the Fourth Proportional to 369,699.84, 510,323.79 and 287,866.08
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Solution
The fourth proportional to 369,699.84, 510,323.79 and 287,866.08 is: 397,362.65
Step by Step Solution
- Step 1: Write the proportion equation
369,699.84 : 510,323.79 = 287,866.08 : x - Step 2: Convert to fraction form
369,699.84/510,323.79 = 287,866.08/x - Step 3: Cross multiply
369,699.84x = 510,323.79 × 287,866.08 - Step 4: Simplify right side
369,699.84x = 146,904,908,958.04 - Step 5: Solve for x
x = 146,904,908,958.04/369,699.84 - Step 6: Final answer
x = 397,362.65
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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.