Finding the Fourth Proportional to 819,609.76, 1,229,119.08 and 346,331.80
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Solution
The fourth proportional to 819,609.76, 1,229,119.08 and 346,331.80 is: 519,372.81
Step by Step Solution
- Step 1: Write the proportion equation
819,609.76 : 1,229,119.08 = 346,331.80 : x - Step 2: Convert to fraction form
819,609.76/1,229,119.08 = 346,331.80/x - Step 3: Cross multiply
819,609.76x = 1,229,119.08 × 346,331.80 - Step 4: Simplify right side
819,609.76x = 425,683,023,390.74 - Step 5: Solve for x
x = 425,683,023,390.74/819,609.76 - Step 6: Final answer
x = 519,372.81
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.