Finding the Fourth Proportional to 668,128.80, 1,001,026.80 and 574,816.80
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Solution
The fourth proportional to 668,128.80, 1,001,026.80 and 574,816.80 is: 861,221.70
Step by Step Solution
- Step 1: Write the proportion equation
668,128.80 : 1,001,026.80 = 574,816.80 : x - Step 2: Convert to fraction form
668,128.80/1,001,026.80 = 574,816.80/x - Step 3: Cross multiply
668,128.80x = 1,001,026.80 × 574,816.80 - Step 4: Simplify right side
668,128.80x = 575,407,021,890.24 - Step 5: Solve for x
x = 575,407,021,890.24/668,128.80 - Step 6: Final answer
x = 861,221.70
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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.