Finding the Fourth Proportional to 1,235,386.12, 1,704,753.84 and 691,430.44
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Solution
The fourth proportional to 1,235,386.12, 1,704,753.84 and 691,430.44 is: 954,129.79
Step by Step Solution
- Step 1: Write the proportion equation
1,235,386.12 : 1,704,753.84 = 691,430.44 : x - Step 2: Convert to fraction form
1,235,386.12/1,704,753.84 = 691,430.44/x - Step 3: Cross multiply
1,235,386.12x = 1,704,753.84 × 691,430.44 - Step 4: Simplify right side
1,235,386.12x = 1,178,718,697,682.89 - Step 5: Solve for x
x = 1,178,718,697,682.89/1,235,386.12 - Step 6: Final answer
x = 954,129.79
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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.