Finding the Fourth Proportional to 1,320,693.74, 1,822,564.62 and 717,081.74
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Solution
The fourth proportional to 1,320,693.74, 1,822,564.62 and 717,081.74 is: 989,576.74
Step by Step Solution
- Step 1: Write the proportion equation
1,320,693.74 : 1,822,564.62 = 717,081.74 : x - Step 2: Convert to fraction form
1,320,693.74/1,822,564.62 = 717,081.74/x - Step 3: Cross multiply
1,320,693.74x = 1,822,564.62 × 717,081.74 - Step 4: Simplify right side
1,320,693.74x = 1,306,927,808,972.04 - Step 5: Solve for x
x = 1,306,927,808,972.04/1,320,693.74 - Step 6: Final answer
x = 989,576.74
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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.