Finding the Fourth Proportional to 679,027.35, 1,017,064.80 and 412,322.70
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Solution
The fourth proportional to 679,027.35, 1,017,064.80 and 412,322.70 is: 617,587.65
Step by Step Solution
- Step 1: Write the proportion equation
679,027.35 : 1,017,064.80 = 412,322.70 : x - Step 2: Convert to fraction form
679,027.35/1,017,064.80 = 412,322.70/x - Step 3: Cross multiply
679,027.35x = 1,017,064.80 × 412,322.70 - Step 4: Simplify right side
679,027.35x = 419,358,904,410.96 - Step 5: Solve for x
x = 419,358,904,410.96/679,027.35 - Step 6: Final answer
x = 617,587.65
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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.