Finding the Fourth Proportional to 1,315,584.74, 1,815,503.36 and 711,972.74
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Solution
The fourth proportional to 1,315,584.74, 1,815,503.36 and 711,972.74 is: 982,520.44
Step by Step Solution
- Step 1: Write the proportion equation
1,315,584.74 : 1,815,503.36 = 711,972.74 : x - Step 2: Convert to fraction form
1,315,584.74/1,815,503.36 = 711,972.74/x - Step 3: Cross multiply
1,315,584.74x = 1,815,503.36 × 711,972.74 - Step 4: Simplify right side
1,315,584.74x = 1,292,588,901,698.41 - Step 5: Solve for x
x = 1,292,588,901,698.41/1,315,584.74 - Step 6: Final answer
x = 982,520.44
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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.