Finding the Fourth Proportional to 818,867.06, 1,130,120.62 and 492,285.79
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Solution
The fourth proportional to 818,867.06, 1,130,120.62 and 492,285.79 is: 679,404.94
Step by Step Solution
- Step 1: Write the proportion equation
818,867.06 : 1,130,120.62 = 492,285.79 : x - Step 2: Convert to fraction form
818,867.06/1,130,120.62 = 492,285.79/x - Step 3: Cross multiply
818,867.06x = 1,130,120.62 × 492,285.79 - Step 4: Simplify right side
818,867.06x = 556,342,324,240.00 - Step 5: Solve for x
x = 556,342,324,240.00/818,867.06 - Step 6: Final answer
x = 679,404.94
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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.