Finding the Fourth Proportional to 918,758.08, 1,378,132.26 and 319,714.48
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Solution
The fourth proportional to 918,758.08, 1,378,132.26 and 319,714.48 is: 479,570.03
Step by Step Solution
- Step 1: Write the proportion equation
918,758.08 : 1,378,132.26 = 319,714.48 : x - Step 2: Convert to fraction form
918,758.08/1,378,132.26 = 319,714.48/x - Step 3: Cross multiply
918,758.08x = 1,378,132.26 × 319,714.48 - Step 4: Simplify right side
918,758.08x = 440,608,838,877.13 - Step 5: Solve for x
x = 440,608,838,877.13/918,758.08 - Step 6: Final answer
x = 479,570.03
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.