Finding the Fourth Proportional to 1,289,646.08, 1,779,570.27 and 745,699.55
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Solution
The fourth proportional to 1,289,646.08, 1,779,570.27 and 745,699.55 is: 1,028,983.66
Step by Step Solution
- Step 1: Write the proportion equation
1,289,646.08 : 1,779,570.27 = 745,699.55 : x - Step 2: Convert to fraction form
1,289,646.08/1,779,570.27 = 745,699.55/x - Step 3: Cross multiply
1,289,646.08x = 1,779,570.27 × 745,699.55 - Step 4: Simplify right side
1,289,646.08x = 1,327,024,749,532.38 - Step 5: Solve for x
x = 1,327,024,749,532.38/1,289,646.08 - Step 6: Final answer
x = 1,028,983.66
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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.