Finding the Fourth Proportional to 1,212,929.56, 1,673,987.34 and 703,649.08
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Solution
The fourth proportional to 1,212,929.56, 1,673,987.34 and 703,649.08 is: 971,119.59
Step by Step Solution
- Step 1: Write the proportion equation
1,212,929.56 : 1,673,987.34 = 703,649.08 : x - Step 2: Convert to fraction form
1,212,929.56/1,673,987.34 = 703,649.08/x - Step 3: Cross multiply
1,212,929.56x = 1,673,987.34 × 703,649.08 - Step 4: Simplify right side
1,212,929.56x = 1,177,899,651,722.65 - Step 5: Solve for x
x = 1,177,899,651,722.65/1,212,929.56 - Step 6: Final answer
x = 971,119.59
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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.