Finding the Fourth Proportional to 1,315,583.74, 1,815,501.99 and 711,971.74
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Solution
The fourth proportional to 1,315,583.74, 1,815,501.99 and 711,971.74 is: 982,519.07
Step by Step Solution
- Step 1: Write the proportion equation
1,315,583.74 : 1,815,501.99 = 711,971.74 : x - Step 2: Convert to fraction form
1,315,583.74/1,815,501.99 = 711,971.74/x - Step 3: Cross multiply
1,315,583.74x = 1,815,501.99 × 711,971.74 - Step 4: Simplify right side
1,315,583.74x = 1,292,586,110,793.76 - Step 5: Solve for x
x = 1,292,586,110,793.76/1,315,583.74 - Step 6: Final answer
x = 982,519.07
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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.