Finding the Fourth Proportional to 1,567,154.20, 2,351,508.90 and 620,555.80
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Solution
The fourth proportional to 1,567,154.20, 2,351,508.90 and 620,555.80 is: 931,141.61
Step by Step Solution
- Step 1: Write the proportion equation
1,567,154.20 : 2,351,508.90 = 620,555.80 : x - Step 2: Convert to fraction form
1,567,154.20/2,351,508.90 = 620,555.80/x - Step 3: Cross multiply
1,567,154.20x = 2,351,508.90 × 620,555.80 - Step 4: Simplify right side
1,567,154.20x = 1,459,242,486,646.62 - Step 5: Solve for x
x = 1,459,242,486,646.62/1,567,154.20 - Step 6: Final answer
x = 931,141.61
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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.