Finding the Fourth Proportional to 1,357,507.20, 2,036,703.68 and 647,442.96
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Solution
The fourth proportional to 1,357,507.20, 2,036,703.68 and 647,442.96 is: 971,375.67
Step by Step Solution
- Step 1: Write the proportion equation
1,357,507.20 : 2,036,703.68 = 647,442.96 : x - Step 2: Convert to fraction form
1,357,507.20/2,036,703.68 = 647,442.96/x - Step 3: Cross multiply
1,357,507.20x = 2,036,703.68 × 647,442.96 - Step 4: Simplify right side
1,357,507.20x = 1,318,649,459,222.09 - Step 5: Solve for x
x = 1,318,649,459,222.09/1,357,507.20 - Step 6: Final answer
x = 971,375.67
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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.