Finding the Fourth Proportional to 557,238.49, 769,070.35 and 312,239.81
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Solution
The fourth proportional to 557,238.49, 769,070.35 and 312,239.81 is: 430,936.46
Step by Step Solution
- Step 1: Write the proportion equation
557,238.49 : 769,070.35 = 312,239.81 : x - Step 2: Convert to fraction form
557,238.49/769,070.35 = 312,239.81/x - Step 3: Cross multiply
557,238.49x = 769,070.35 × 312,239.81 - Step 4: Simplify right side
557,238.49x = 240,134,379,960.63 - Step 5: Solve for x
x = 240,134,379,960.63/557,238.49 - Step 6: Final answer
x = 430,936.46
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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.