Finding the Fourth Proportional to 1,289,651.08, 1,779,577.18 and 745,704.56
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Solution
The fourth proportional to 1,289,651.08, 1,779,577.18 and 745,704.56 is: 1,028,990.58
Step by Step Solution
- Step 1: Write the proportion equation
1,289,651.08 : 1,779,577.18 = 745,704.56 : x - Step 2: Convert to fraction form
1,289,651.08/1,779,577.18 = 745,704.56/x - Step 3: Cross multiply
1,289,651.08x = 1,779,577.18 × 745,704.56 - Step 4: Simplify right side
1,289,651.08x = 1,327,038,817,997.94 - Step 5: Solve for x
x = 1,327,038,817,997.94/1,289,651.08 - Step 6: Final answer
x = 1,028,990.58
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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.