Finding the Fourth Proportional to 683,764.20, 1,025,646.30 and 471,187.80
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Solution
The fourth proportional to 683,764.20, 1,025,646.30 and 471,187.80 is: 706,781.70
Step by Step Solution
- Step 1: Write the proportion equation
683,764.20 : 1,025,646.30 = 471,187.80 : x - Step 2: Convert to fraction form
683,764.20/1,025,646.30 = 471,187.80/x - Step 3: Cross multiply
683,764.20x = 1,025,646.30 × 471,187.80 - Step 4: Simplify right side
683,764.20x = 483,272,023,675.14 - Step 5: Solve for x
x = 483,272,023,675.14/683,764.20 - Step 6: Final answer
x = 706,781.70
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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.