Finding the Fourth Proportional to 1,313,148.74, 1,812,145.34 and 709,536.74
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Solution
The fourth proportional to 1,313,148.74, 1,812,145.34 and 709,536.74 is: 979,160.75
Step by Step Solution
- Step 1: Write the proportion equation
1,313,148.74 : 1,812,145.34 = 709,536.74 : x - Step 2: Convert to fraction form
1,313,148.74/1,812,145.34 = 709,536.74/x - Step 3: Cross multiply
1,313,148.74x = 1,812,145.34 × 709,536.74 - Step 4: Simplify right side
1,313,148.74x = 1,285,783,706,476.51 - Step 5: Solve for x
x = 1,285,783,706,476.51/1,313,148.74 - Step 6: Final answer
x = 979,160.75
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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.