Finding the Fourth Proportional to 1,425,390.48, 2,138,479.38 and 1,268,713.80
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Solution
The fourth proportional to 1,425,390.48, 2,138,479.38 and 1,268,713.80 is: 1,903,421.09
Step by Step Solution
- Step 1: Write the proportion equation
1,425,390.48 : 2,138,479.38 = 1,268,713.80 : x - Step 2: Convert to fraction form
1,425,390.48/2,138,479.38 = 1,268,713.80/x - Step 3: Cross multiply
1,425,390.48x = 2,138,479.38 × 1,268,713.80 - Step 4: Simplify right side
1,425,390.48x = 2,713,118,300,421.44 - Step 5: Solve for x
x = 2,713,118,300,421.44/1,425,390.48 - Step 6: Final answer
x = 1,903,421.09
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.