Finding the Fourth Proportional to 1,395,919.21, 1,926,326.55 and 775,722.28
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Solution
The fourth proportional to 1,395,919.21, 1,926,326.55 and 775,722.28 is: 1,070,473.43
Step by Step Solution
- Step 1: Write the proportion equation
1,395,919.21 : 1,926,326.55 = 775,722.28 : x - Step 2: Convert to fraction form
1,395,919.21/1,926,326.55 = 775,722.28/x - Step 3: Cross multiply
1,395,919.21x = 1,926,326.55 × 775,722.28 - Step 4: Simplify right side
1,395,919.21x = 1,494,294,423,390.53 - Step 5: Solve for x
x = 1,494,294,423,390.53/1,395,919.21 - Step 6: Final answer
x = 1,070,473.43
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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.