Finding the Fourth Proportional to 913,292.55, 1,260,324.86 and 505,394.13
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Solution
The fourth proportional to 913,292.55, 1,260,324.86 and 505,394.13 is: 697,433.46
Step by Step Solution
- Step 1: Write the proportion equation
913,292.55 : 1,260,324.86 = 505,394.13 : x - Step 2: Convert to fraction form
913,292.55/1,260,324.86 = 505,394.13/x - Step 3: Cross multiply
913,292.55x = 1,260,324.86 × 505,394.13 - Step 4: Simplify right side
913,292.55x = 636,960,783,610.10 - Step 5: Solve for x
x = 636,960,783,610.10/913,292.55 - Step 6: Final answer
x = 697,433.46
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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.