Finding the Fourth Proportional to 1,395,782.88, 1,926,027.36 and 783,811.68
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Solution
The fourth proportional to 1,395,782.88, 1,926,027.36 and 783,811.68 is: 1,081,574.19
Step by Step Solution
- Step 1: Write the proportion equation
1,395,782.88 : 1,926,027.36 = 783,811.68 : x - Step 2: Convert to fraction form
1,395,782.88/1,926,027.36 = 783,811.68/x - Step 3: Cross multiply
1,395,782.88x = 1,926,027.36 × 783,811.68 - Step 4: Simplify right side
1,395,782.88x = 1,509,642,740,767.57 - Step 5: Solve for x
x = 1,509,642,740,767.57/1,395,782.88 - Step 6: Final answer
x = 1,081,574.19
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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.