Finding the Fourth Proportional to 818,868.06, 1,130,122 and 492,286.79
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Solution
The fourth proportional to 818,868.06, 1,130,122 and 492,286.79 is: 679,406.32
Step by Step Solution
- Step 1: Write the proportion equation
818,868.06 : 1,130,122 = 492,286.79 : x - Step 2: Convert to fraction form
818,868.06/1,130,122 = 492,286.79/x - Step 3: Cross multiply
818,868.06x = 1,130,122 × 492,286.79 - Step 4: Simplify right side
818,868.06x = 556,344,131,688.38 - Step 5: Solve for x
x = 556,344,131,688.38/818,868.06 - Step 6: Final answer
x = 679,406.32
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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.