Finding the Fourth Proportional to 692,467.12, 956,036.68 and 447,580.09
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Solution
The fourth proportional to 692,467.12, 956,036.68 and 447,580.09 is: 617,939.78
Step by Step Solution
- Step 1: Write the proportion equation
692,467.12 : 956,036.68 = 447,580.09 : x - Step 2: Convert to fraction form
692,467.12/956,036.68 = 447,580.09/x - Step 3: Cross multiply
692,467.12x = 956,036.68 × 447,580.09 - Step 4: Simplify right side
692,467.12x = 427,902,979,768.66 - Step 5: Solve for x
x = 427,902,979,768.66/692,467.12 - Step 6: Final answer
x = 617,939.78
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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.