Finding the Fourth Proportional to 1,289,389.24, 1,779,252.96 and 745,560.24
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Solution
The fourth proportional to 1,289,389.24, 1,779,252.96 and 745,560.24 is: 1,028,812.88
Step by Step Solution
- Step 1: Write the proportion equation
1,289,389.24 : 1,779,252.96 = 745,560.24 : x - Step 2: Convert to fraction form
1,289,389.24/1,779,252.96 = 745,560.24/x - Step 3: Cross multiply
1,289,389.24x = 1,779,252.96 × 745,560.24 - Step 4: Simplify right side
1,289,389.24x = 1,326,540,263,878.31 - Step 5: Solve for x
x = 1,326,540,263,878.31/1,289,389.24 - Step 6: Final answer
x = 1,028,812.88
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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.